Does resveratrol improve cognition?

Evidence is inconsistent. A meta-analysis found favorable results only for selected cognition and mood outcomes (PMID:29596658).

What dose was studied?

One crossover trial used 75 mg trans-resveratrol twice daily, while an exercise trial used 250 mg/day. These are research contexts, not personal instructions (PMID:32900519; PMID:23878368).

Does resveratrol help metabolic health?

A diabetes meta-analysis reported some insulin-resistance signals, but results were heterogeneous and other glycemic outcomes were inconsistent (PMID:33480264).

Can resveratrol affect exercise adaptation?

A small trial in older inactive men found blunted cardiovascular and fitness adaptations during exercise training (PMID:23878368).

Supplement guide Antioxidants

Resveratrol

Resveratrol research shows limited, mixed signals across cognition, vascular, and metabolic outcomes rather than consistent benefits (PMID:29596658; PMID:32900519; PMID:33480264). Findings vary by population, formulation, study design, and outcome, and one exercise study found blunted adaptations (PMID:23878368).

At a glance

Snapshot

Primary goal: Evaluate limited resveratrol evidence without treating selected outcomes as established benefits.
Dosage range: Research context only: 75 mg trans-resveratrol twice daily for 24 months in one crossover trial, and 250 mg/day for 8 weeks in an exercise trial (PMID:32900519; PMID:23878368).
Best time to take: Not established by the supplied evidence.
Time to effect: Uncertain; supplied trials ranged from 8 weeks to 24 months and studied different outcomes.
Common stacks: The supplied studies do not establish evidence-based supplement combinations.
Intake notes: Formulation matters because a key trial specifically used trans-resveratrol. Review medicines, conditions, surgery, and training goals with a clinician.

Use and selection

Buying Guide

Everything you need to know to make an informed decision about Resveratrol

Why It Matters

Products may differ in form, dose, purity, and correspondence to trans-resveratrol used in research.

How Resveratrol Helps You

Cognition evidence

A meta-analysis found inconsistent cognition and mood evidence, with favorable results limited to selected outcomes (PMID:29596658).

Postmenopausal research

A 24-month crossover trial reported small cognition, cerebrovascular, and insulin-sensitivity signals in postmenopausal women (PMID:32900519).

Metabolic evidence

A diabetes meta-analysis reported insulin-resistance signals alongside heterogeneous and inconsistent glycemic outcomes (PMID:33480264).

Exercise adaptation concern

A small study in older men found that 250 mg/day blunted some adaptations to exercise training (PMID:23878368).

Frequently Asked Questions

Common questions about Resveratrol answered by our experts

Does resveratrol improve cognition?: Evidence is inconsistent. A meta-analysis found favorable results only for selected cognition and mood outcomes (PMID:29596658).
What dose was studied?: One crossover trial used 75 mg trans-resveratrol twice daily, while an exercise trial used 250 mg/day. These are research contexts, not personal instructions (PMID:32900519; PMID:23878368).
Does resveratrol help metabolic health?: A diabetes meta-analysis reported some insulin-resistance signals, but results were heterogeneous and other glycemic outcomes were inconsistent (PMID:33480264).
Can resveratrol affect exercise adaptation?: A small trial in older inactive men found blunted cardiovascular and fitness adaptations during exercise training (PMID:23878368).