Resveratrol Dosage Australia 2026: How Much to Take

Last updated: November 1, 2026 · Originally published: June 15, 2026 · By Eternal Elixir Editorial

Quick answer: There is no set daily intake for resveratrol, so the most useful resveratrol dosage guide is the doses tested in human trials. Trials that looked for a benefit in healthy adults mostly used 150 mg to 1,000 mg a day, for 90 days to 12 months. Digestive side effects became common from 2.5 g a day upwards. Our pick is Eternal Elixir Trans-Resveratrol 1200mg: 600 mg of 98% trans-resveratrol per capsule and 90 capsules to a bottle. Our directions give a serve of two capsules (1,200 mg). That is above 1,000 mg a day, the intake a 2023 meta-analysis linked to a small rise in one liver enzyme, so one capsule (600 mg) is the more cautious place to start. If you are older or take regular medicines, ask your GP which suits you.

Eternal Elixir makes Trans-Resveratrol 1200mg, and it is our pick on this page. Every study figure below comes from the published paper or its PubMed abstract. Every competitor price, dose and direction comes from that product’s own page, read in September 2026. If you are still deciding which brand to buy, our comparison of resveratrol supplements in Australia covers more products.

How much resveratrol should you take a day?

No recommended daily intake exists for resveratrol, and the doses used in research span a wide range. The table below sets out the main human trials from the lowest dose to the highest, with what each one measured.

Read down the table and a pattern shows. The trials that looked for a benefit in healthy people used 150 mg to 1,000 mg a day. The trials at 2 g a day and above were checking safety and blood levels, and that is where digestive side effects became common.

A practical daily range

• 150–250 mg a day matches the Newcastle and German trials in older adults, which ran from 14 weeks to 12 months.
• Up to about 1,000 mg a day was used for 90 days in older adults, and 1 g a day was found safe over 29 days in healthy volunteers. In that trial, digestive symptoms were mostly reported at 2.5 g and 5 g.
• 1,200 mg a day is the two-capsule serve in our directions. It is above the 1 g a day that the authors of the 29-day Leicester trial suggested future studies should not exceed, and above the 1,000 mg level linked to a small liver-enzyme rise. One capsule gives 600 mg, inside the range most benefit trials used.

More is not automatically better. Only one small trial has compared doses directly: in 32 older adults, 1,000 mg a day improved one speed test where 300 mg did not, and neither dose changed anything else. The next section explains why bigger doses behave this way.

Why a bigger resveratrol dose doesn’t scale neatly

Resveratrol is well absorbed and then quickly changed. In the Walle study, at least 70% of a 25 mg dose was absorbed, yet only trace amounts circulated as unchanged resveratrol. The gut and liver convert most of it into sulfate and glucuronide forms within hours.

The high-dose Leicester trial found the same thing at 0.5 g to 5 g a day: levels of those converted forms far exceeded resveratrol itself. Whether the converted forms do useful work in people is still an open question. The practical point is simpler. A bigger dose raises blood levels, but most of what circulates is the converted forms rather than resveratrol itself, and nobody has shown that the extra turns into more benefit. Steady daily use at a moderate dose makes more sense than chasing a bigger number.

Its close relative pterostilbene is often chosen by people who worry about absorption. Our guide to how pterostilbene compares with resveratrol sets out what is and isn’t known, and our pterostilbene supplement comparison covers the Australian options.

Resveratrol dose by goal: what the trials support

Match the dose to what was actually tested, and be clear about what hasn’t been.

• Brain blood flow and memory in women after menopause: 75 mg twice a day, the dose in both Newcastle trials. The longer trial ran 12 months on resveratrol and 12 months on placebo in the same women.
• Memory in healthy older adults: 200 mg a day for 26 weeks, from the German trial. It was small, with 23 people on resveratrol.
• Thinking speed in older adults: 1,000 mg a day for 90 days improved one psychomotor speed test in a pilot of 32 people, while 300 mg did not. The lead author disclosed past advisory work for the company that supplied the resveratrol.
• Healthy ageing and lifespan: resveratrol extended the lifespan of yeast by 70% in a widely cited 2003 study. No human trial has measured lifespan, so there is no human dose for it.
• Pairing with NMN: the idea comes from lab research linking resveratrol to sirtuin enzymes, which need NAD+ to work. The human trials above tested resveratrol on its own.

If you are new to NAD+ and sirtuins, our explainer on how NAD+ levels change with age is a good starting point.

When and how to take resveratrol

Morning, with a normal meal

In a Portuguese study of 40 healthy adults taking 25 mg to 150 mg six times a day, blood levels of resveratrol were higher after morning doses than later ones. That is a small study, but it supports the common habit of taking resveratrol with breakfast.

Food is where most dosage guides get it wrong. Resveratrol can be taken with or without food. Extra fat does not improve absorption, as two human studies show.

• In 24 healthy adults given 400 mg, a high-fat meal slowed absorption compared with an empty stomach (blood levels peaked at 2 hours instead of 30 minutes) but did not change the total amount absorbed in a meaningful way.
• In 8 healthy adults taking 2,000 mg twice a day, a high-fat breakfast cut total exposure by 45% compared with a standard breakfast. The authors advised a standard breakfast, not a high-fat one.

So take it with an ordinary meal, or without food if that suits you. There is no need to add extra oil or butter to get more out of a capsule.

One dose or two?

Both Newcastle trials split the dose into 75 mg twice a day. Resveratrol’s half-life in the blood is short, a few hours. No trial has compared one daily dose with two, so either is reasonable. If you take our two-capsule serve, you can take both with breakfast or one with breakfast and one with lunch. Pick the pattern you will stick to, because every trial above relied on daily use for weeks or months.

Add Trans-Resveratrol 1200mg to cart · $59.99

Is 1,000 mg of resveratrol too much? Safety by dose

At the doses most people take, resveratrol has a good safety record in short trials. The picture changes as the dose climbs.

• Up to 1 g a day. The 29-day Leicester trial found resveratrol safe, with digestive symptoms mostly in the 2.5 g and 5 g groups. Its authors suggested future trials keep the daily dose at or below 1 g. An earlier single-dose study from the same group gave up to 5 g at once with no serious adverse events.
• 2.5 g a day and above. Mild to moderate digestive symptoms appeared at 2.5 g and 5 g in the Leicester trial. At 2,000 mg twice a day, six of eight volunteers had diarrhoea.
• Liver enzymes. A 2023 meta-analysis of 37 trials found no overall change in liver markers. In subgroups, intakes above 1,000 mg a day were linked to a small rise in alkaline phosphatase (5.07 U/L), and older adults showed a small rise in ALT (2.33 U/L). The authors advise caution with high doses and in older adults. Our two-capsule serve is 1,200 mg, so if you are over 65, have a liver condition or have regular blood tests, talk to your GP about whether one capsule or two suits you.
• Medicines. At 1 g a day for four weeks, resveratrol reduced the activity of the liver enzymes CYP3A4, CYP2D6 and CYP2C9 and increased CYP1A2. These enzymes clear many common prescription medicines. If you take any, ask your pharmacist before starting. Some Australian labels, including Genetic Labs’, warn about warfarin specifically.
• Pregnancy, breastfeeding and children. Don’t use resveratrol supplements. Bulk Nutrients and Genetic Labs both advise against use in pregnancy, and Bulk Nutrients says its capsules are not for children under 15.

You don’t need to cycle resveratrol on and off. The longest trial here gave it daily for 12 months, and none of the benefit trials used a cycling pattern.

Reading a resveratrol label: trans, purity and dose per capsule

Three details on the label decide what you are actually taking.

• The form. Trans-resveratrol is the form used in the trials above. The 14-week Newcastle trial used 99% pure synthetic trans-resveratrol. Our capsules state 98% purity from Polygonum cuspidatum (Japanese knotweed). Some labels just say “resveratrol” without giving the trans content. Bulk Nutrients’ page is one example.
• Dose per capsule versus per serve. Healthy Care’s capsule holds 50 mg of knotweed extract, which equals 25 mg of resveratrol, so its label dose of 2–4 capsules gives 50–100 mg a day. Genetic Labs gives 150 mg per capsule in MCT oil. Ours gives 600 mg per capsule.
• Other ingredients. Herbs of Gold Resveratrol AdvantAGE adds 50 mg of vitamin C and 5 mg of zinc to 250 mg of resveratrol. Blends aren’t a problem, but compare the resveratrol amount on its own.

Resveratrol supplements in Australia by dose and cost

The table converts each product to the cost per day at its own directed serve and the cost per 500 mg of resveratrol, in Australian dollars, as of Sep 2026. Eternal Elixir is listed first because it is our product and our pick. The rest are in order of cost per 500 mg.

Ours has the highest dose per capsule in the table and a stated trans purity. At one capsule a day it costs $0.67 a day for 600 mg. Bulk Nutrients has the lowest cost per 500 mg, but its page doesn’t say how much of that is trans-resveratrol. If you want to copy the 150 mg a day used in the Newcastle trials, Genetic Labs’ 150 mg capsule matches that dose directly, at a much higher cost per milligram.

Eternal Elixir Trans-Resveratrol 1200mg: who it suits and who it doesn’t

Each capsule holds 600 mg of trans-resveratrol (98% purity, from Polygonum cuspidatum), with rice flour and a cellulose capsule. The directed serve is two capsules a day, with or without food, which is 1,200 mg, and a bottle of 90 capsules gives 45 serves. At one capsule a day, the same bottle lasts 90 days.

A bottle is A$59.99, which works out at A$1.33 per two-capsule serve or $0.56 per 500 mg. Two bottles save 10%, three save 15% and five save 20%. Orders over $100 ship free, and orders are dispatched in 1 business day with a 30-day money-back guarantee.

It suits you if:

• You want 600 mg to 1,200 mg a day from one or two capsules, instead of four or more.
• You want the trans purity stated.
• You are building a morning routine with NMN and want both from one Australian shop.

It doesn’t suit you if:

• You want the low 150 mg daily dose from the Newcastle trials. A 150 mg capsule such as Genetic Labs fits that better.
• You are pregnant or breastfeeding, or buying for someone under 18.
• You take warfarin or other prescription medicines and haven’t checked with your pharmacist.
• You want the lowest cost per milligram and don’t mind an unstated trans content. Bulk Nutrients costs less per 500 mg.

Add Trans-Resveratrol 1200mg to cart · $59.99

Resveratrol dosage with NMN

Many longevity routines pair resveratrol with NMN, taken together in the morning. The reasoning is that resveratrol activates sirtuins in lab studies and sirtuins need NAD+, which NMN helps the body make. That link has been shown in cells and animals. The human dosing trials above tested resveratrol alone, so think of the pairing as a reasonable routine rather than a proven one.

If you stack them, the resveratrol dose guidance above doesn’t change. Our NMN 500mg gives 500 mg per capsule, one a day, 90 capsules to a bottle. Our NMN dosage guide covers that side, and our NMN and resveratrol comparison explains what each one does. If you would rather take both in one product, see our guide to combined NMN and resveratrol supplements. For the full picture, our guide to building a longevity stack shows how resveratrol fits with NMN, spermidine and TUDCA, and our NMN supplement comparison covers the brands.

If you prefer pterostilbene to resveratrol, our Cellular Longevity Stack pairs NMN with trans-pterostilbene and spermidine. Don’t add resveratrol on top of it without a reason, since the two compounds are close relatives. Our spermidine dosage guide covers the third ingredient.

Resveratrol dosage: frequently asked questions

How much resveratrol should I take per day?

Trials that looked for a benefit in healthy adults used 150 mg to 1,000 mg a day. A sensible range for most adults sits there. Our capsules give 600 mg each, with a directed serve of two capsules (1,200 mg). Starting with one capsule and checking how you feel is reasonable.

Add Trans-Resveratrol 1200mg to cart · $59.99

Is 1,000 mg of resveratrol too much?

Not for most healthy adults in the short term. 1 g a day was found safe over 29 days in healthy volunteers and was used for 90 days in a trial of older adults. Digestive symptoms became common at 2.5 g a day. A 2023 meta-analysis linked intakes above 1,000 mg a day to a small rise in one liver enzyme, so if you are older or have a liver condition, check with your GP before taking more than 1,000 mg a day.

What is the best time of day to take resveratrol?

Morning, with breakfast. A small Portuguese study found higher blood levels after morning doses, and taking it with a regular meal is easy to remember. Consistency matters more than the exact hour.

Does resveratrol need fat to be absorbed?

No. Take it with or without food, and there is no need to add fat. In one study a high-fat meal slowed absorption compared with an empty stomach, without changing the total absorbed. In another, at a very high dose, a high-fat breakfast cut absorption by 45% compared with a standard breakfast.

Should I take resveratrol with NMN?

Many people do, on the lab-based reasoning that resveratrol activates sirtuins and NMN helps supply the NAD+ they need. The human resveratrol trials tested it on its own, so the pairing is a routine, not a proven combination. If you stack them, take both in the morning with food.

How long does resveratrol take to work?

The trials that found a benefit measured it after 14 weeks, 26 weeks and 12 months. Nothing suggests an effect in days. Give any dose at least three months of daily use before judging it.

Can you take resveratrol every day long term?

The longest trial here gave 150 mg a day for 12 months. Longer daily use hasn’t been tested in trials, and high doses deserve more caution in older adults.

Does resveratrol interact with medications?

It can. At 1 g a day it changed the activity of several liver enzymes that clear common medicines, and some Australian labels warn about warfarin. If you take any prescription medicine, ask your pharmacist or GP before starting.

What is the best resveratrol supplement in Australia?

Our pick is Eternal Elixir Trans-Resveratrol 1200mg. It has 600 mg of 98% trans-resveratrol per capsule, the highest dose per capsule of the products we compared, 90 capsules to a bottle, and ships from Sydney. Eternal Elixir makes it. Bulk Nutrients has the lowest cost per 500 mg, and Genetic Labs suits people who want a low 150 mg dose. Our resveratrol supplement comparison covers more brands.

Add Trans-Resveratrol 1200mg to cart · $59.99

The bottom line

For most healthy adults, a daily resveratrol dose between 150 mg and 1,000 mg covers what the benefit trials used. Take it in the morning with an ordinary meal, give it three months, and check with a pharmacist if you take prescription medicines. Higher doses bring more digestive side effects and deserve more care in older adults.

Eternal Elixir Trans-Resveratrol 1200mg gives you 600 mg per capsule, so you can take one capsule or the two-capsule directed serve from the same bottle. Browse the full Eternal Elixir range or see where it sits among our best longevity supplements in Australia.

Sources

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• Walle T, Hsieh F, DeLegge MH, Oatis JE Jr, Walle UK. High absorption but very low bioavailability of oral resveratrol in humans. Drug Metab Dispos. 2004;32(12):1377-82. PubMed 15333514
• Evans HM, Howe PR, Wong RH. Effects of resveratrol on cognitive performance, mood and cerebrovascular function in post-menopausal women; a 14-week randomised placebo-controlled intervention trial. Nutrients. 2017;9(1):27. PubMed 28054939
• Thaung Zaw JJ, Howe PR, Wong RH. Long-term effects of resveratrol on cognition, cerebrovascular function and cardio-metabolic markers in postmenopausal women: a 24-month randomised, double-blind, placebo-controlled, crossover study. Clin Nutr. 2021;40(3):820-829. PubMed 32900519
• Witte AV, Kerti L, Margulies DS, Flöel A. Effects of resveratrol on memory performance, hippocampal functional connectivity, and glucose metabolism in healthy older adults. J Neurosci. 2014;34(23):7862-70. PubMed 24899709
• Anton SD, Ebner N, Dzierzewski JM, et al. Effects of 90 days of resveratrol supplementation on cognitive function in elders: a pilot study. J Altern Complement Med. 2018;24(7):725-732. PubMed 29583015
• Chow HH, Garland LL, Hsu CH, et al. Resveratrol modulates drug- and carcinogen-metabolizing enzymes in a healthy volunteer study. Cancer Prev Res. 2010;3(9):1168-75. PubMed 20716633
• Brown VA, Patel KR, Viskaduraki M, et al. Repeat dose study of the cancer chemopreventive agent resveratrol in healthy volunteers: safety, pharmacokinetics, and effect on the insulin-like growth factor axis. Cancer Res. 2010;70(22):9003-11. PubMed 20935227
• la Porte C, Voduc N, Zhang G, et al. Steady-state pharmacokinetics and tolerability of trans-resveratrol 2000 mg twice daily with food, quercetin and alcohol (ethanol) in healthy human subjects. Clin Pharmacokinet. 2010;49(7):449-54. PubMed 20528005
• Vaz-da-Silva M, Loureiro AI, Falcao A, et al. Effect of food on the pharmacokinetic profile of trans-resveratrol. Int J Clin Pharmacol Ther. 2008;46(11):564-70. PubMed 19000554
• Almeida L, Vaz-da-Silva M, Falcão A, et al. Pharmacokinetic and safety profile of trans-resveratrol in a rising multiple-dose study in healthy volunteers. Mol Nutr Food Res. 2009;53 Suppl 1:S7-15. PubMed 19194969
• Soltani S, Sharifi-Zahabi E, Sangsefidi ZS, et al. The effect of resveratrol supplementation on biomarkers of liver health: a systematic review and meta-analysis of randomized controlled trials. Phytother Res. 2023;37:1153-1166. PubMed 36642444
• Howitz KT, Bitterman KJ, Cohen HY, et al. Small molecule activators of sirtuins extend Saccharomyces cerevisiae lifespan. Nature. 2003;425(6954):191-6. PubMed 12939617
• Product pages read September 2026: Bulk Nutrients, Herbs of Gold, Healthy Care, Genetic Labs and Eternal Elixir.