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02Research · Supplement

Resveratrol

Measured against the 58-marker panel. Human studies found an effect on 19, no change in 10 and conflicting results on 11; 18 have no result yet.

Most studied for

metabolic_syndrome_insulin_resistance_mitochondrial_activation

  • Supported 19
  • No effect 10
  • Conflicting 11
  • No result yet 18
BOverall evidence grade
925Studies tracked
127Meta-analyses
333Randomized trials

01Read first

Who should be careful

From the dossier's safety review: 13 cautions and 13 interactions, 5 rated serious. They summarize research and labels; they are not advice for you.

Cautions13

  • SeriousPregnancyGrade C

    Resveratrol is a phytoestrogen (ERα/ERβ partial agonist/antagonist) that may disrupt fetal endocrine development. Corpus contains 187 pregnancy-related studies documenting risk investigation, not established safety.

  • SeriousSolid organ transplant patients on calcineurin inhibitors (cyclosporine, tacrolimus)Grade C

    Resveratrol inhibits P-gp and CYP3A4, both critical for cyclosporine and tacrolimus metabolism and elimination. Concentration increases of these narrow-TI drugs risk nephrotoxicity, neurotoxicity, and graft rejection events.

  • SeriousHormone-sensitive cancers (ER+ breast cancer, endometrial cancer)Grade D

    Resveratrol acts as a phytoestrogen with ERα/ERβ partial agonism at low concentrations and partial antagonism at higher concentrations. In estrogen receptor-positive cancers, partial agonism could theoretically stimulate tumor proliferation.

  • ModeratePre-existing hypotension or postural hypotensionGrade B

    Resveratrol reduces blood pressure via eNOS-mediated vasodilation and natriuresis (−3.7 to −5.8 mmHg SBP in MAs). In patients with pre-existing hypotension or on multiple antihypertensives, additional BP reduction may cause symptomatic hypotension, falls, and syncope.

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  • ModeratePre-surgical / Perioperative periodGrade C

    Resveratrol inhibits platelet aggregation via COX-1/COX-2 and thromboxane A2 suppression. Antiplatelet activity increases intraoperative and postoperative bleeding risk, particularly when combined with surgical anticoagulants or antiplatelet protocols.

  • ModerateActive bleeding disorders or ongoing anticoagulation therapyGrade C

    Resveratrol's antiplatelet (COX inhibition, thromboxane A2 suppression) and potential anticoagulant (CYP2C9 inhibition of warfarin metabolism) effects combine to increase hemorrhagic risk.

  • ModerateLactation / BreastfeedingGrade D

    Resveratrol and metabolites likely transfer into breast milk based on lipophilicity and high protein binding (~93–99%). Phytoestrogenic exposure to nursing infant is unknown.

  • ModerateModerate to severe hepatic impairment (Child-Pugh B/C)Grade D

    Resveratrol undergoes extensive hepatic Phase II metabolism (UGT1A1, UGT1A9, SULT1A1). Hepatic impairment reduces conjugation capacity, increasing free resveratrol exposure and prolonging half-life.

  • ModeratePediatric population (under 18 years)Grade D

    No safety, pharmacokinetic, or efficacy data exist for resveratrol in pediatric populations. Phytoestrogenic effects are of particular concern during puberty and growth phases, with potential for endocrine disruption at critical developmental windows.

  • ModerateBiliary obstructionGrade D

    Biliary obstruction impairs excretion of glucuronide conjugates (major resveratrol metabolites). Conjugate accumulation may prolong pharmacological effects and alter the interaction profile.

  • MinorConcurrent structured aerobic exercise training programsGrade B

    Resveratrol's AMPK/SIRT1 activation overlaps with exercise signaling pathways. Multiple RCTs (Gliemann 2013, Olesen 2013) demonstrate attenuation of exercise-induced cardiovascular and metabolic adaptations in older adults.

  • MinorActive GI mucosal disease (active peptic ulcer, active IBD flare)Grade C

    Resveratrol has antiplatelet activity (COX inhibition) that may impair gastric mucosal protection, similar to NSAIDs.

  • MinorSevere renal impairment (eGFR <30 mL/min/1.73m²)Grade D

    Approximately 40% of resveratrol metabolites are renally excreted as sulfate conjugates. Severe renal impairment may result in conjugate accumulation.

Interactions13

  • SeriousCyclosporineGrade C

    (1) P-gp inhibition reduces cyclosporine intestinal efflux, increasing oral bioavailability; (2) CYP3A4 inhibition (Ki 6–26 μM) reduces hepatic cyclosporine metabolism.

  • SeriousTacrolimusGrade C

    P-gp and CYP3A4 inhibition by resveratrol reduces tacrolimus clearance. Extremely narrow therapeutic index (target trough 5–15 ng/mL).

  • ModerateWarfarinGrade C

    Dual: (1) CYP2C9 inhibition (Ki 30–100 μM) reduces warfarin S-enantiomer metabolism, elevating plasma anticoagulant effect; (2) COX-1/COX-2 inhibition and antiplatelet activity add pharmacodynamic bleeding risk

  • ModerateSimvastatin / AtorvastatinGrade C

    CYP3A4 inhibition increases plasma levels of CYP3A4-metabolized statins. P-gp inhibition may additionally reduce first-pass intestinal efflux.

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  • ModerateDigoxinGrade C

    P-gp inhibition reduces digoxin renal tubular efflux and intestinal elimination, increasing digoxin plasma levels.

  • ModerateAntiplatelet agents (aspirin, clopidogrel, ticagrelor)Grade C

    Resveratrol inhibits COX-1/COX-2 and thromboxane A2 synthesis, providing additive antiplatelet activity.

  • ModerateCYP1A2 substrates with narrow therapeutic index (theophylline, clozapine, tizanidine)Grade C

    Resveratrol inhibits CYP1A2 (Ki 21–38 μM).

  • ModerateMidazolam (CYP3A4 probe substrate)Grade C

    CYP3A4 inhibition reduces midazolam metabolism, potentially prolonging sedation.

  • MinorMetforminGrade B

    Pharmacodynamic synergism: both activate AMPK and improve insulin sensitivity. No significant pharmacokinetic interaction (metformin not CYP-metabolized.

  • MinorAntihypertensive drugs (ACE inhibitors, ARBs, beta-blockers, calcium channel blockers)Grade B

    Pharmacodynamic additive blood pressure lowering via eNOS/NO-mediated vasodilation and natriuresis.

  • MinorLosartanGrade C

    (1) CYP2C9 inhibition reduces losartan bioactivation to E-3174; (2) Pharmacodynamic additive BP lowering

  • MinorKetoconazole / ItraconazoleGrade C

    CYP3A4 inhibition by azoles may increase free resveratrol exposure. Both are also P-gp inhibitors.

  • MinorQT-prolonging drugs (amiodarone, sotalol, quinolone antibiotics, antipsychotics)Grade D

    Theoretical pharmacodynamic additive QT prolongation based on preclinical cardiac ion channel data.

02What it moves

40 markers studied

One row per marker on the panel that human studies measured. Open a row for the direction, who was studied, and the papers.

Read with this in mind

Resveratrol's cardiometabolic effects (glucose, insulin, BP, TG, CRP) are substantially larger or exclusively present in populations with metabolic disease (T2DM, obesity, MetS, NAFLD) and frequently null in healthy, lean, normoglycemic individuals.

Resveratrol's anti-inflammatory effects on CRP are contested.

Resveratrol's effects on LDL, HDL, and total cholesterol are inconsistent and frequently null.

Blood sugar4 of 4 studied

HbA1cLowersGrade A
Fasting glucoseMixed resultsGrade B

Studies of Resveratrol and fasting glucose disagree.

Fasting insulinMixed resultsGrade B

Studies of Resveratrol and fasting insulin disagree.

HOMA-IRMixed resultsGrade A

Lipids5 of 6 studied

LDL-CNo changeGrade A
HDL-CNo changeGrade A
TriglyceridesMixed resultsGrade A
Total cholesterolNo changeGrade A
ApoBNo changeGrade B

Inflammation4 of 5 studied

hs-CRPMixed resultsGrade A
IL-6Mixed resultsGrade A
TNF-αLowersGrade A
FibrinogenNo changeGrade A

Studies of Resveratrol found no change in fibrinogen.

Liver5 of 6 studied

ALTLowersGrade A
ASTMixed resultsGrade A
ALPLowersGrade A
BilirubinNo changeGrade A

Studies of Resveratrol found no change in bilirubin.

AlbuminNo changeGrade A

Kidney2 of 4 studied

CreatinineMixed resultsGrade A
eGFRMixed resultsGrade A

Blood and iron4 of 7 studied

HemoglobinLowersGrade B
White cellsLowersGrade B

Resveratrol lowers white cells.

PlateletsLowersGrade B
FerritinLowersGrade B

Resveratrol lowers ferritin.

Hormones4 of 5 studied

TestosteroneNo changeGrade A
EstradiolMixed resultsGrade C
SHBGNo changeGrade B
CortisolLowersGrade C

Resveratrol lowers cortisol.

Thyroid1 of 4 studied

TSHMixed resultsGrade B

Heart1 of 2 studied

TroponinLowersGrade C

Resveratrol lowers troponin.

Oxidative stress4 of 4 studied

MDALowersGrade A
F2-isoprostanesLowersGrade A
8-OHdGLowersGrade C

Resveratrol lowers 8-OHdG.

GlutathioneRaisesGrade A

Body2 of 2 studied

Blood pressureRaisesGrade A
Weight and BMINo changeGrade A

Also measured18 outcomes

Outcomes these studies measured that are not on the shared panel, so they are not on the map.

Intrahepatic lipidLowersGrade B

Resveratrol lowers intrahepatic lipid.

Ki-67 Proliferation IndexLowersGrade B

Resveratrol lowers ki-67 Proliferation Index.

LeptinLowersGrade B

Resveratrol lowers leptin.

Leukocyte countLowersGrade B

Resveratrol lowers leukocyte count.

Sleeping metabolic rateLowersGrade B

Resveratrol lowers sleeping metabolic rate.

Uric acidLowersGrade B

Resveratrol lowers uric acid.

Xanthine oxidase activityLowersGrade B

Resveratrol lowers xanthine oxidase activity.

Total antioxidant capacityRaisesGrade B

Resveratrol raises total antioxidant capacity.

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Ampk phosphorylationRaisesGrade C

Resveratrol raises ampk phosphorylation.

Citrate synthase activityRaisesGrade C

Resveratrol raises citrate synthase activity.

Pgc1a proteinRaisesGrade C

Resveratrol raises Pgc1a protein.

Sirt1 proteinRaisesGrade C

Resveratrol raises Sirt1 protein.

Apolipoprotein a1No changeGrade B

Studies of Resveratrol found no change in apolipoprotein a1.

Apolipoprotein bNo changeGrade B

Studies of Resveratrol found no change in apolipoprotein b.

Sbp pulse pressureNo changeGrade D

Studies of Resveratrol found no change in sbp pulse pressure.

Waist circumferenceMixed resultsGrade A
AdiponectinMixed resultsGrade C

Studies of Resveratrol and adiponectin disagree.

Ox LDLMixed resultsGrade C

Studies of Resveratrol and ox LDL disagree.

How it might work4

Proposed mechanisms. Most rest on lab and animal work, so read them as explanations, not proof of an effect.

  • AMPK activation → increased NAD+/NADH ratio → SIRT1 deacetylase activation
  • SIRT1-mediated PGC-1alpha deacetylation → mitochondrial biogenesis and oxidative capacity
  • NF-kB pathway inhibition → reduced pro-inflammatory cytokine transcription
  • Nrf2/ARE pathway activation → upregulation of antioxidant and cytoprotective genes

03No result yet

18 markers

18 markers on the panel have no result for Resveratrol yet. A gap is not a negative result.

Not yet reviewed18

No study in this dossier reported these, and they haven't been searched for one by one yet.

Lipids
Lp(a)
Inflammation
ESR
Liver
GGT
Hormones
DHEA-S
B vitamins
Vitamin B12MMA

Open questions4

  • What is the net in vivo effect of resveratrol on estrogen receptor signaling in human breast and endometrial tissue - agonism, antagonism, or tissue-selective modulation?
  • Is AMPK activation by resveratrol primarily mediated by direct PDE inhibition (cAMP → PKA → AMPK) or by indirect mitochondrial complex I inhibition (AMP:ATP ratio increase)?
  • Does resveratrol produce clinically meaningful glucose or insulin sensitization in prediabetic (impaired fasting glucose/impaired glucose tolerance) populations who are not yet on metformin?
  • Are resveratrol's metabolic effects modified by sex, and specifically, are postmenopausal women (with altered estrogen signaling) differentially responsive compared to premenopausal women or men?

04The studies and genetics

Go deeper

The three acts above are free. The paper-by-paper list and the genetics findings are part of the Research plan.
Research planResearch access

Every study and gene finding

Open the strongest papers with their populations and findings, and the gene differences human studies measured.

Compare with

On the evidence map →

Each marker shows the strongest record in the dossier. Records are extracted from published studies by a model pipeline and graded A to D; records whose own notes say no usable human data exists count as no result yet. Research summaries for education, not medical advice. How this page is sourced