{"publication_id":"894c8a6d-e240-4cf7-9da0-061b9f6a2380","traces":[{"claim_id":"claim_1","claim":"Evidence-honesty note: 64/78 retained sources are coded as null or no extracted directional signal; this corpus is non-supportive for clinical efficacy claims and hypothesis-generating only. Source-bundle reconciliation note: Directional coding is conservative claim-level coding from extracted claim records, not a statement that the source texts contain no directional findings; source-level positive, negative, or unclear findings should be interpreted through the coded outcome class, directness, and claim-count fields. 74/78 retained sources are indirect, review-level, adjacent, or mechanistic and are used only to bound interpretation. The conclusion therefore does not support broad causal, clinical, or policy claims.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_2","claim":"Epigallocatechin gallate (EGCG), the dominant catechin in green tea, has attracted substantial interest as a candidate geroprotector, with proposed mechanisms spanning mitochondrial complex I inhibition, anti-inflammatory signaling, and bone-metabolic effects, yet the human evidence base remains fragmented across preclinical, mechanistic, and trial designs.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_3","claim":"We conducted an AI-assisted structured evidence synthesis with full audit trail, screening 78 curated references across direct human RCTs, mechanistic/preclinical studies, and indirect observational evidence, and resolving each into a canonical outcome class to prevent cross-domain fusion.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_4","claim":"Across the corpus, the evidence supports a hedged position: EGCG-rich green tea is mechanistically plausible and biomarker-active in select human RCTs, but no included source directly demonstrates lifespan or functional-longevity extension in humans, so the anti-aging case remains incomplete until adequately powered, hard-outcome trials are completed.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_5","claim":"Evidence-abstraction note.** The 78 retained reference papers are not 78 independent primary clinical trials: 74 are review, indirect, mechanistic, or registered-protocol source-level summaries, and 4 are classified as direct interventional evidence. Interpretation below therefore separates primary clinical-trial evidence from review-level, preclinical, and other indirect evidence.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_6","claim":"This synthesis evaluates evidence on EGCG green tea longevity across 78 included source papers and 2351 high-confidence extracted claims. The review is organized around the distinction between direct interventional hard-endpoint evidence, indirect interventional hard-endpoint evidence, and mechanistic evidence so that biological plausibility is not confused with clinical certainty.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_7","claim":"The corpus contains 4 direct clinical sources, 51 adjacent clinical sources, and 23 mechanistic or model-system sources. That distribution makes the synthesis appropriate for evaluating convergence, boundary conditions, and trial-design implications, while requiring caution around any conclusion that would exceed the direct human evidence.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_8","claim":"The thesis is: Across 78 curated reference papers, the evidence base for Egcg shows a context-dependent profile. Positive signals appear in: dosing pharmacokinetics, mechanism. Negative signals appear in: cardiometabolic. Null findings dominate: contextual other, mechanism. The synthesis surfaces cross-study disagreements across outcome classes — see Cross-Domain Synthesis. The Egcg anti-aging case as currently constituted is incomplete: mechanistic plausibility coexists with mixed or sparse human-RCT evidence, and the boundary conditions remain to be established. This thesis is treated as an organizing claim, not as a substitute for the study table, because the source record includes supportive, null, and adverse signals across different outcome classes.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_9","claim":"This distinction matters for publication because it makes the paper falsifiable. A future source can strengthen, weaken, or reverse the synthesis by changing the evidence tier, direction, or outcome-class balance.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_10","claim":"The mechanistic layer is most useful when it explains why a trial signal might appear or fail to appear. It is weaker when it is used as a replacement for outcome data, so this synthesis treats it as interpretive support rather than independent clinical proof.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_11","claim":"Null findings have a specific role in this evidence model. They do not erase mechanistic plausibility, but they do narrow the set of claims that can be made about effect consistency, target population, and endpoint selection.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_12","claim":"Adverse or negative signals are likewise retained in the main interpretation. For an aging intervention, the risk profile is part of the efficacy question because a plausible mechanism is not sufficient if the same corpus shows offsetting harm or tolerability constraints.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_13","claim":"The evidence base also distinguishes breadth from certainty. A broad corpus can cover many biological domains while still leaving the clinically decisive question unresolved if direct evidence is limited, heterogeneous, or endpoint-specific.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_14","claim":"Several methodological and design questions cut across the Egcg evidence base and warrant explicit framing. First, endpoint choice remains unsettled: most trials rely on cardiometabolic, inflammatory, or cognitive biomarkers, whose surrogate status is a recognized limitation (Ioannidis 2005), and no trial has been designed around canonical geroscience endpoints tied to the 0.8 m/s gait-speed threshold (Studenski 2011), the 0.6 m/s severe-frailty marker (Cesari 2009), the 0.1 m/s clinically meaningful change (Perera 2006), the EWGSOP2 grip-strength cutoffs of 27 kg (men) and 16 kg (women) (Cruz-Jentoft 2019), or the approximate 0.05 m/s annual age-related gait-speed decline (Bohannon 1997). Second, heterogeneity in EGCG formulation (decaffeinated extract vs isolated EGCG), dosing tier, and co-interventions (multimodal lifestyle, periodontal scaling, dietary background) limits cross-trial comparability, a problem compounded by variation in habitual green tea consumption across study populations. Third, treatment duration and follow-up in current trials are short relative to the chronicity of aging phenotypes, raising the question of whether exposure windows of weeks can be expected to move endpoints that evolve over years. Finally, concurrent interventions in trials such as PENSA, where multimodal lifestyle is bundled with EGCG, confound attribution of benefit and complicate any Egcg claim. Resolving these questions will require trials of longer duration, in older populations at defined frailty or sarcopenia thresholds, with composite endpoints that integrate the hallmark framework rather than a single surrogate.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_15","claim":"The biological rationale is treated as context rather than as clinical proof. Population fit, comparator alignment, clinical directness, follow-up length, ascertainment method, baseline risk, adherence, exposure dose, and external validity are kept separate during interpretation. The interpretation","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_16","claim":"The following fields were extracted from each included source: study design, population / cohort, intervention or exposure, comparator, outcome class, effect direction, effect size, confidence interval or credible interval, p-value, sample size, follow-up duration, risk-of-bias rating. Under the calibration rule, source verification in the public bundle is limited to reference-level metadata; exact statistics and effect directions are drawn from these structured extraction artifacts (the synthesis manifest, risk-of-bias appraisal, and claim registry) rather than from re-parsed full text.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_17","claim":"Per-source risk-of-bias was rated using design-appropriate Cochrane RoB-2 (RCTs), ROBINS-I (non-randomised studies), and AMSTAR-2 (systematic reviews / meta-analyses).","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_18","claim":"Evidence-tension synthesis: claims grouped by outcome class (cardiometabolic, contextual adjacent evidence, deficiency prevalence, dosing and pharmacokinetics, immune and inflammation, longevity, mechanism, muscle function, safety and comorbidity, skeletal, fracture, and bone); within-class agreement, disagreement, and directness gaps surfaced explicitly. Quantitative pooling applied only where ≥3 sources reported a comparable endpoint with extractable effect estimates.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_19","claim":"Source retrieval, claim extraction, evidence routing, and prose drafting were assisted by large language models under a deterministic audit-trail protocol. Every manuscript claim is traceable to a source record in the supplementary `manifest.json`. Final eligibility and interpretation decisions are author-verified.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_20","claim":"| Evidence domain | Corpus slice | Strongest signal | Directness | Main limitation |","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_21","claim":"| Contextual Adjacent Evidence | n=43; claims=1381 | no extracted directional signal in 38/43 sources | 2 direct; 39 indirect; 1 protocol; 1 review | limited corpus depth in this outcome class |","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_22","claim":"Outcome-class note:** Contextual Adjacent Evidence denotes background, boundary-condition, or adjacent-outcome sources. It is not pooled with direct outcome evidence; these sources bound scope, safety, methods, and translation rather than serving as equal-weight support for the main efficacy claim.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_23","claim":"Contextual Adjacent Evidence: n=43; claims=1381; no extracted directional signal in 38/43 sources | directness: 2 direct; 39 indirect; 1 review; 1 protocol; main limitation: directionally heterogeneous.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_24","claim":"One clinical RCT in adults constitutes the only direct human evidence for the cardiometabolic outcome class in the curated corpus. The trial is the only source bearing a direct clinical/functional designation for cardiometabolic outcomes in this synthesis.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_25","claim":"The corpus on EGCG and green tea is dominated by mechanistic and indirect-evidence strands, with a comparatively narrow clinical RCT spine.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_26","claim":"Additional corpus sources included animal/preclinical evidence; within this contextual class, quantitative signals are heterogeneous. Pharmacokinetic compartmental modeling in Hodges 2023 reports residence-time effects with P < 0.001 and P < 0.0001 for gallated versus non-gallated catechin trafficking in healthy adults. Conversely, several indirect reports recorded predominantly null effects in their primary endpoints: Zuo 2025 on CYP450 regulation in HepG2 cells (P < 0.01, P < 0.05, but null for several contrasts), Du 2012 in chemoprevention comparisons, and Xu 2020 in the 4T1 breast-cancer MDSC model.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_27","claim":"Mechanistically, the contextual corpus sketches a converging but incomplete substrate for any longevity claim. Pharmacokinetic compartmental modeling (Hodges 2023) and gut-microbiota–mediated catechin transformation (Su 2024, P < 0.05) provide bioavailability and metabolic-route context. The mechanistic substrate underlying any functional longevity finding therefore coexists with reproducibly null indirect observations across large segments of the contextual literature.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_28","claim":"Within-corpus tensions are most visible along two axes. First, the indirectness gap between the two direct RCTs (Iino 2026, Zeng 2022) and the predominantly indirect remainder creates an evidence-asymmetry that the prose above already separates by design stratum. Second, the null vs positive tension between Rasheed 2009 (positive on contextual other) and the large null-leaning indirect block (Du 2012, Gu 2013, Baker 2015, Bae 2017, Khan 2018, Bungau 2019, Hengge 2019, Pervin 2019, Ali 2019, Xu 2017, Heyza 2018, Park 2021b, Yap 2021, Kapoor 2021, Siriphap 2022, LeBlanc 2022, Mokra 2022, Urdzikova 2023, Li 2026, Zuo 2025, Yang 2025b, Quan 2023, Ferrari 2025, Zhou 2025, Su 2024, Johnson 2025, Forcano 2025, Rovaldi 2025, Hodges 2023, Al-Hendy 2024, Agarwal 2023, Nesran 2019, Xu 2020, Miyoshi 2020, Almatroodi 2020, Huang 2020, Khurana 2013, Yi 2017, Aguilera 2023) is best read as a design-discordance rather than a contradiction: Rasheed 2009 is a tightly controlled in vitro chondrocyte study with mechanistic readouts, whereas most null reports are observational, narrative-review, or protocol-level with no enrolled clinical population. The cardiometabolic strand (Roberts 2021) is itself mixed-direction, and Iino 2026 reports divergent insulin-resistance improvement (P = 0.020) with no visceral-fat reduction (P = 0.243). These within-corpus disagreements imply that the EGCG-and-longevity case as currently constituted is incomplete and that boundary conditions — dose, gallation, host genotype, microbiome — remain to be established before clinical claims can be sharpened.","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_29","claim":"Within the curated evidence base on EGCg (epigallocatechin gallate) and longevity, only one source — Sun 2019 — is mapped to the deficiency prevalence outcome class, and it is explicitly tagged as indirect rather than as a direct epidemiological or clinical prevalence study (Sun 2019). The population described in that source is framed generically as adults, and no p-values, hazard ratios, or sample-size numerics are reported in the available metadata (Sun 2019). Consequently, the corpus does not support a quantitative prevalence estimate for any EGCg-related deficiency state; the outcome class is populated by structural/biophysical work rather than by nutritional-epidemiology data (Sun 2019).","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]},{"claim_id":"claim_30","claim":"These are reagent- and biophysics-level descriptors, not effect sizes, and the source contains no confidence intervals, p-values, or risk estimates that could be carried into a clinical-effectiveness synthesis (Sun 2019). As a result, the deficiency prevalence class contributes no clinically reportable effect estimate to the longevity case for EGCg (Sun 2019).","candidate_sources":[{"study":"Investigation of the regulatory effects of tea polyphenols on CYP450s in HepG2 cells","doi":"10.3389/fnut.2025.1663800","url":"https://doi.org/10.3389/fnut.2025.1663800"},{"study":"The Impact of Decaffeinated Green Tea Extract on Fat Oxidation, Body Composition and Cardio-Metabolic Health in Overweight, Recreationally Active Individuals","doi":"10.3390/nu13030764","url":"https://doi.org/10.3390/nu13030764"},{"study":"Gut microbiota from green tea polyphenol-dosed mice improves intestinal epithelial homeostasis and ameliorates experimental colitis","doi":"10.1186/s40168-021-01115-9","url":"https://doi.org/10.1186/s40168-021-01115-9"},{"study":"The Role of Green Tea Catechin Epigallocatechin Gallate (EGCG) and Mammalian Target of Rapamycin (mTOR) Inhibitor PP242 (Torkinib) in the Treatment of Spinal Cord Injury","doi":"10.3390/antiox12020363","url":"https://doi.org/10.3390/antiox12020363"},{"study":"A multimodal lifestyle intervention complemented with epigallocatechin gallate to prevent cognitive decline in APOE - ɛ4 carriers with Subjective Cognitive Decline: a randomized, double-blinded clinical trial (PENSA study)","doi":"10.1016/j.tjpad.2025.100271","url":"https://doi.org/10.1016/j.tjpad.2025.100271"}]}]}