Resveratrol

Resveratrol is the red-wine molecule that got famous for longevity, but the human story is a lot more grounded: it earns its keep far better on blood sugar than on anti-aging hype.

66 papers 84 claims 152 outcomes

Reduce inflammatory flare-up signals Steady your blood sugar levels

Resveratrol is a plant defense compound found in grape skins, berries, peanuts, and especially Japanese knotweed. Plants make it when they get stressed, almost like chemical body armor. Supplements usually concentrate resveratrol far beyond what you would get from food or wine.

Resveratrol works less like a stimulant and more like a reset button for your cells' fuel gauges: it nudges AMPK and SIRT1, which tells the liver to stop dumping extra sugar into the bloodstream and tells tissues to listen to insulin better.¹² It also helps the lining of your blood vessels release more nitric oxide — basically a green light that tells tight arteries to loosen up — which explains the small but real blood-pressure effect.³ On the inflammation side, it appears to turn down some of the body's emergency-text signals, including IL-1 and IL-6, though that part of the research still looks less settled than the blood-sugar data.⁴

Dosing

How to take resveratrol

Range

Human trials span a huge range — 10 to 3,000 mg/day — but the research clusters into a few practical lanes: 150 mg/day in several cognition and exercise studies, 500-1,000 mg/day in many circulation and metabolic trials, and 800-1,500 mg/day in PCOS studies.¹⁵⁶

Timing

Take it once daily with food, or split it into morning and evening doses if you use a higher amount. The studies that improve glucose control and blood pressure use steady daily intake for weeks to months, not occasional dosing.¹³

Form

Choose a supplement that clearly lists trans-resveratrol and the exact milligram dose. That is the form behind most of the human trial data, including the 150 mg cognitive studies and the higher-dose metabolic and PCOS protocols.⁵⁶

What works

2 claims with strong evidence

Likely strong benefit

Reduce inflammatory flare-up signals

Fewer alarm signals reaching your joints, gut, and other tissues. ^37767399

50-200 mg/kg 6 weeks 1 studies 0 people

Ranks #2 of 17 supplements

Proven benefit

Steady your blood sugar levels

Keeps fasting glucose and your three-month average in a healthier range. ^{22055504,23193181,24073011 +20}

10-3000 mg 4-52 weeks 23 studies 5.9k people

Ranks #4 of 95 supplements

More findings

Smaller effects and promising leads

Improve insulin sensitivity Proven modest benefit

Your cells respond to insulin again so your pancreas works less hard. ^{22055504,23193181 +19}

21 studies 10-3000 mg

Lower your blood pressure Likely modest benefit

Brings down both systolic and diastolic, especially when baseline runs high. ^{22055504,23193181 +12}

14 studies 8.1-3000 mg

Lose body fat Likely modest benefit

Body fat percentage drops and the mirror shows it before the scale does. ^{29330620,35431994 +3}

5 studies 40-1000 mg

Speed up thinking and reactions Likely modest benefit

Shortens the gap between seeing a question and having the answer. ^32244933

1 studies 150 mg

Lower homocysteine levels Likely modest benefit

Clears a vessel-irritating byproduct that builds when nutrient recycling falls behind. ^41760304

1 studies

Strengthen planning and mental control Likely modest benefit

Organize priorities, switch tasks, and catch mistakes more easily. ^32244933

1 studies 150 mg

Reduce excess androgens in PCOS Likely modest benefit

Lowers the hormones that cause acne, unwanted hair, and missed periods in PCOS. ^37333786

1 studies 800-1500 mg

Raise good cholesterol levels Proven but unnoticeable

Boosts the cholesterol that pulls fat out of artery walls. ^{24073011,27560482 +15}

17 studies 8.1-3000 mg

Lower uric acid levels Proven but unnoticeable

Reduces blood uric acid so crystals stop forming in joints and kidneys. ^41878257

1 studies 8-1000 mg

Reduce belly and deep abdominal fat Proven but unnoticeable

Targets the visceral fat that wraps around your organs and drives inflammation. ^{23193181,32823621 +3}

5 studies 50-3000 mg

Strengthen bones by favoring buildup Proven but unnoticeable

Your skeleton tips toward building bone faster than it breaks down. ^{32564438,34420523 +3}

5 studies 8-1500 mg

Ease inflammation tied to metabolism Proven but unnoticeable

Fat tissue produces fewer inflammatory signals and more protective ones. ^{22055504,23224687 +2}

4 studies 8-3000 mg

Lose weight on the scale Likely real but unnoticeable

Less weight on your joints, better blood markers, easier movement. ^{23193181,24073011 +12}

14 studies 50-3000 mg

Ease the burden of dementia caregiving Likely real but unnoticeable

Less energy spent managing resistance, more spent on real connection. ^{33802381,40771919}

2 studies 75-600 mg

Reduce the emotional weight of pain Likely real but unnoticeable

Pain feels less overwhelming and occupies less headspace. ^{33802381,40771919}

2 studies 75-600 mg

Boost overall cognitive performance Likely real but unnoticeable

Broad gains in memory, speed, and mental sharpness at once. ^{28054939,32244933}

2 studies 150 mg

Move more easily with aging Likely real but unnoticeable

Stand, walk, turn, and handle stairs with less effort and more confidence. ^{33068691,28403379 +2}

4 studies 100-1000 mg

Reduce everyday pain intensity Likely real but unnoticeable

Lower intensity, fewer flares, and longer stretches of relief. ^{33802381,40771919 +1}

3 studies 40-600 mg

9 promising leads — reduce oxidative cell damage, prevent cavities and reduce plaque, last longer before giving out, lower il-6 inflammation, and 5 more

Reduce oxidative cell damage — Less oxidative damage to your cell membranes, proteins, and DNA. ^{30023333,34484395 +4}

6 studies · 290 people

Prevent cavities and reduce plaque — Fewer bacteria, less plaque, and a mouth environment friendlier to your teeth. ^39251207

1 studies · 39 people

Last longer before giving out — More reps, more miles, and a higher ceiling before fatigue forces you to stop. ^32492138

1 studies · 26 people

Lower IL-6 inflammation — Reduces IL-6, a pro-inflammatory signal tied to joint pain, metabolic stress, and chronic disease. ^{22055504,23193181 +6}

8 studies · 3.1k people

Reduce mouth pain and discomfort — Eating, speaking, and daily comfort feel easier and less bothersome. ^39251207

1 studies · 39 people

Balance skin oil production — Less midday shine on oily skin, more suppleness on dry skin. ^41488277

1 studies · 59 people

Burn more fat for fuel — Your body favors fat as fuel, sparing stored carbs for intense efforts. ^22055504

1 studies · 22 people

Reduce fine lines and wrinkles — Smooths crow's feet, forehead lines, and surface roughness. ^41488277

1 studies · 60 people

Improve blood vessel relaxation — Boosts nitric oxide where you need it for circulation, dials it back where it causes harm. ^{33068691,40854984}

2 studies · 32 people

43 early-stage findings — strengthen oral antioxidant defense, remember more and forget less, lift and steady your mood, lower day-to-day anxiety, and 39 more

Strengthen oral antioxidant defense — Raises antioxidant levels in your saliva to protect gums and cheeks. ^{29330620 +4}

5 studies

Remember more and forget less — Names, conversations, and details stay retrievable instead of dissolving. ^28054939

1 study

Lift and steady your mood — Good days come more often and bad ones feel less heavy. ^28054939

1 study

Lower day-to-day anxiety — The background hum of worry that colors everything gets quieter. ^28054939

1 study

Ease anxiety in older adults — Quiets the health worries and body tension that build with age. ^28054939

1 study

Reduce pre-competition anxiety — Quiets the overthinking that hijacks execution right before you compete. ^28054939

1 study

Increase antioxidant defenses — Your blood neutralizes oxidants faster, before they damage cells. ^{29330620 +5}

6 studies

Ease clotting and inflammation together — Breaks the loop where sticky blood and inflammation keep worsening each other. ^{23224687 +1}

2 studies

Reduce everyday fatigue — Less of that heavy, worn-out feeling that makes simple tasks feel like a chore. ^33802381

1 study

Boost skin hydration — Locks more moisture into skin so it feels softer and less tight. ^{33949795 +1}

2 studies

Clear dandruff flakes — Reduces visible scalp flaking and dryness within the first couple months. ^{33949795 +1}

2 studies

Lower low-grade inflammation — Brings down C-reactive protein, a blood marker your doctor tracks. ^{23193181 +7}

8 studies

Build stronger muscles — Higher one-rep max, stronger grip, and more force from every muscle group. ^33068691

1 study

Ease headache and migraine pain — Dials down how intense each headache feels when it hits. ^35565731

1 study

Get fewer headaches and migraines — Cuts the number of attacks per month so headache days stop piling up. ^35565731

1 study

Boost your resting metabolic rate — Burns more calories at rest and after meals without extra exercise. ^{22055504 +2}

3 studies

Build glutathione antioxidant levels — Your cells' main internal antioxidant defense gets deeper reserves. ^{33949795 +1}

2 studies

Even out skin tone — Fades dark spots, melasma patches, and uneven pigmentation. ^{35696226 +1}

2 studies

Balance minerals in kidney disease — Keeps mineral levels in check when damaged kidneys can't clear them. ^34420523

1 study

Raise peak oxygen capacity — Higher aerobic ceiling gives more headroom at race pace. ^28505227

1 study

Lower fracture risk in older adults — Fewer hip, spine, forearm, and other fractures from weakened bones. ^32564438

1 study

Reduce migraine disruption — Headaches steal fewer workdays, social plans, and hours of patience. ^35565731

1 study

Protect cholesterol from oxidation — Keeps blood fats from becoming the oxidized particles that damage arteries. ^{30023333 +2}

3 studies

Build a more diverse microbiome — More bacterial species so your gut bounces back faster from disruptions. ^30873501

1 study

Grow beneficial gut bacteria — The species that produce vitamins and crowd out harmful bugs gain ground. ^30873501

1 study

Build more oxygen-rich red blood cells — More red cells loaded with more hemoglobin reach every muscle and organ. ^{40854984 +1}

2 studies

Protect bones while breastfeeding — Keeps your bone mass intact during the mineral drain of lactation. ^{30237505 +2}

3 studies

Grow Akkermansia in your gut — Feeds a gut wall specialist that maintains your protective mucus layer. ^30873501

1 study

Boost anti-inflammatory signals — Raises the messengers that tell your immune system to stand down after a threat. ^23224687

1 study

Reduce oxidative damage to your DNA — Less daily wear on your genetic material inside each cell. ^36771199

1 study

Reverse fatty liver buildup — Shrinks fat deposits in the liver and calms the inflammation driving disease forward. ^{23193181 +3}

4 studies

Slow chronic kidney disease decline — Preserves kidney function and delays when dialysis becomes necessary. ^39264004

1 study

Calm blood-vessel inflammation — Lowers the artery wall irritation that feeds plaque buildup. ^{28604618 +1}

2 studies

Reduce heart attack and stroke risk — Keeps plaque stable and blood flowing so clots can't block an artery. ^41660098

1 study

Reduce chronic immune overactivation — Attack signals drop so your immune system stops hitting your own tissues. ^28086917

1 study

Protect brain tissue as you age — Slows shrinkage in the regions that handle memory and planning. ^{26362286 +1}

2 studies

Improve function in heart failure — Stronger pumping, better exercise tolerance, fewer hospital visits. ^41660098

1 study

Lower TNF-alpha inflammation — Reduces one of the immune system's strongest pro-inflammatory signals. ^{22055504 +6}

7 studies

Increase blood flow to the brain — Widens the small arteries feeding active brain regions to deliver more oxygen. ^{28054939 +1}

2 studies

Flatten post-meal blood sugar spikes — Blunts the glucose surge after eating so energy stays level. ^{28604618 +1}

2 studies

Lower triglycerides — Reduces the blood fats that rise after meals and drive heart risk. ^{22055504 +20}

21 studies

Lower bad and total cholesterol — Cuts the cholesterol that builds into artery plaque over time. ^{24073011 +19}

20 studies

Lower elevated liver enzymes — Brings down blood markers that spike when liver cells are damaged. ^{22055504 +10}

11 studies

What doesn’t help

Claims without support

Improve overall sleep quality

Deeper, less interrupted nights that leave you recharged by morning.

Improve everyday quality of life

Fewer days where health problems dictate what you can and cannot do.

Raise vitamin D levels

Closes the deficiency gap most people don't know they have.

Replenish immune fuel during TB treatment

Restores a nutrient the immune system burns through faster during active TB.

Clear acne breakouts

Cuts oil production and calms the inflammation behind each new spot.

Ease joint pain

Your joints stop being the first thing you notice every morning.

Build and maintain bone density

Keeps mineral packed tightly into hip, spine, and whole-body bone.

Improve kidney filtration rate

Your kidneys clear waste from the blood more effectively.

Improve thyroid hormone balance

Keeps the gland that controls your metabolism producing at the right level.

Ease cold and flu severity

When you do get sick, the whole experience hits lighter.

Shrink waist and hip measurements

You lose inches around your waist, hips, or arms as fat drops.

Ease arthritis pain and joint inflammation

Less pain, less stiffness, quieter inflammatory signals inside the joint.

Safety

What to watch for

⚠

nephrotoxicity — severe

⚠

Nephrotoxicity — severe

⚠

Cardiac inflammation — severe

⚠

Renal tubular necrosis — severe

⚠

Urinary tract infection (hospitalisation) — severe

⚠

Bowel blockage (hospitalisation) — severe

⚠

Oesophageal tear repair (hospitalisation) — severe

⚠

Pre-scheduled lumbar spine operation (hospitalisation) — severe

Interactions

Drug and supplement interactions

paclitaxel — major, decreases_effect

cyclosporine — major, increases_concentration

midazolam — major, increases_concentration

drug:warfarin — major, increases_effect

antidepressants — major, increases_toxicity

other — major, increases_effect

warfarin — major, increases_effect

methotrexate — major, increases_concentration

other — major, decreases_effect

bortezomib — major, unknown

Synergies

What pairs well

Quercetin

18 shared endpoints · d=0.55

Vitamind

9 shared endpoints · d=0.32

Thyme

9 shared endpoints · d=1.88

The bottom line

If your main goal is better glucose control, resveratrol deserves a real look: human trials repeatedly show better fasting glucose and HbA1c, with smaller add-on effects for insulin sensitivity and blood pressure.¹³ If you want dramatic weight loss, lower LDL, better sleep, or stronger bones, the data does not back the hype.³⁴⁵ This also isn't a casual add-on for a crowded medication stack, because resveratrol has a meaningful interaction profile.⁷

Frequently asked

Common questions

Does resveratrol actually help with blood sugar?

Yes — this is where resveratrol looks strongest in humans. Across many trials, it shows real improvements in fasting glucose and HbA1c, with smaller extra gains in insulin sensitivity.¹

Is resveratrol good for weight loss?

Not if you expect a dramatic change. Studies suggest small drops in body fat and barely noticeable shifts on the scale, so most people will not see a big visual or weight-loss payoff.¹

What dose of resveratrol do studies use?

Human trials run anywhere from 10 to 3,000 mg/day, but most cluster around a few patterns: 150 mg/day for cognition and exercise studies, 500-1,000 mg/day for circulation and metabolic work, and 800-1,500 mg/day in PCOS trials.⁵⁶

Does resveratrol help with sleep?

It doesn't appear to. The sleep studies in humans showed no meaningful improvement in overall sleep quality.⁵

What form of resveratrol works best?

Trans-resveratrol has the best human trial track record. That is the form researchers use most often in the 150 mg cognition studies and in the higher-dose metabolic protocols.⁵⁶

How long does resveratrol take to work?

For blood sugar and blood pressure, think weeks to months, not a same-day effect. The benefits in human trials show up with steady daily use, not as a quick stimulant-style boost.¹³

Track resveratrol in the app

Log doses, check interactions, see how it compares to alternatives — all evidence-based.

Join the waitlist

Sources

Generated April 3, 2026