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Ingredient guide

Elderberry dosage: how much was used in studies

Written by the Full Measure editorial team, which sells supplements. Approved for publication by the Full Measure owners. Updated .

Drafted with AI assistance from the sources listed below. How we write these

Quick answer

There is no official elderberry dose. Trials used 600 to 900 mg a day of a capsule extract, 15 mL of syrup two to four times a day, or an extract supplying 500 mg of anthocyanins a day. Most courses lasted 2 to 16 days, and the longest in healthy people ran 12 weeks.1,2,3

Key facts

  • NIH lists one 15 mL syrup dose as 5,700 mg of elderberry extract.1
  • The syrup and lozenge trials lasted 2 to 5 days.1,2
  • Fresh European elderberries hold about 391 to 806 mg of anthocyanins per 100 g.4
  • Neither NIH nor NCCIH gives a recommended daily amount.1,5

Amounts used in trials

Elderberry amounts in human trials1,2,3,6
FormAmountHow oftenHow long
Capsules of 300 mg extract600 mg a day, then 900 mg a day2 or 3 capsules a dayAbout 15 days
Syrup15 mL a doseTwice a day for children aged 5 to 12, four times for others3 to 5 days
Lozenges of 175 mg extract700 mg a day4 times a day2 days
Capsules of an anthocyanin-rich extract500 mg of anthocyanins a day2 capsules twice a day12 weeks
Capsules of spray-dried juice, 10% anthocyanins1.2 g a day400 mg three times a day2 weeks
Infusion (tea)200 mLNot stated in the review30 days

Trials lasting 3 to 5 days gave 15 mL of elderberry syrup four times a day to adults and older children, and twice a day to children aged 5 to 12.1,2

In a small study without a placebo group, 22 healthy volunteers drank a 200 mL elderberry infusion for 30 days.2

Why the milligrams are hard to compare

A label may give the weight of an extract, the volume of a syrup or the amount of anthocyanins, and these are not interchangeable.7,8

Products differ in strength. In two small studies, 30 mL of a commercial elderberry extract supplied 147 mg of anthocyanins in one case and 278 mg in the other.7,8

Without the extract ratio or the anthocyanin content, two products with the same number of milligrams can differ widely. NIH also notes that some products sold as elderberry are diluted or adulterated.1

How long courses lasted

The trials in people who were already unwell gave elderberry for 2 to 16 days. The longest trial in healthy people that we found ran for 12 weeks.1,3

The 12-week trial in healthy women is the longest in healthy people that we found, and the liver and kidney blood tests in it stayed within normal ranges. We found no trial of longer daily use in healthy people.3

Do not dose with raw berries

Raw or unripe elderberries, and the leaves, stems, bark and seeds, contain substances that can release cyanide and cause nausea, vomiting and severe diarrhea. Cooking destroys them, so cooked fruit and properly processed products do not carry this concern.1,5

In 1983, 11 of 25 people at a gathering in California fell ill within 15 minutes of drinking juice made from wild elderberries crushed with their leaves and stems. The eight most affected had nausea, vomiting, stomach cramps and weakness and were flown to hospital, and all recovered.9

What's in ours

What’s in ours

  • Immune Support: Elderberry Extract, 500 mg per serving, from the label

Our label gives the weight of the extract but not its anthocyanin content or extract ratio, so it cannot be compared directly with the trials above.

Who should ask before taking any amount

No upper limit has been set for elderberry. The longest trial in healthy people that we found gave an extract supplying 500 mg of anthocyanins a day for 12 weeks, and most others lasted 2 to 16 days.1,3

  • Do not take elderberry supplements if you are pregnant.1
  • Ask first if you are breastfeeding, have diabetes, or take medicine that lowers blood sugar or suppresses the immune system.1,10
  • Ask a pediatrician before giving any amount to a child.

Questions people ask

How much elderberry per day for adults?

Adult trials used 600 to 900 mg a day of one capsule extract, 15 mL of syrup up to four times a day, or an extract supplying 500 mg of anthocyanins a day. None of these is an official dose.1,2,3

How many mg of elderberry per day did trials use?

Capsule trials used 600 to 900 mg of extract a day, but milligrams of extract are not a fixed measure. Products differ in how much anthocyanin each milligram holds.1,7,8

How much elderberry can children take?

Some short trials included children aged 5 to 12, at 15 mL of syrup twice a day, but the sources we use give no dose for children. Ask a pediatrician first.1

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Sources

  1. National Institutes of Health, Office of Dietary Supplements. Dietary Supplements for Immune Function and Infectious Diseases: Fact Sheet for Health Professionals. Updated March 10, 2025. Opened 2026-10-07.
  2. Wieland LS, Piechotta V, Feinberg T, et al. Elderberry for prevention and treatment of viral respiratory illnesses: a systematic review. BMC Complement Med Ther. 2021;21(1):112. Opened 2026-10-01.
  3. Curtis PJ, Kroon PA, Hollands WJ, Walls R, Jenkins G, Kay CD, Cassidy A. Cardiovascular disease risk biomarkers and liver and kidney function are not altered in postmenopausal women after ingesting an elderberry extract rich in anthocyanins for 12 weeks. J Nutr. 2009;139(12):2266-2271. Opened 2026-10-07.
  4. Osman AG, Avula B, Katragunta K, Ali Z, Chittiboyina AG, Khan IA. Elderberry Extracts: Characterization of the Polyphenolic Chemical Composition, Quality Consistency, Safety, Adulteration, and Attenuation of Oxidative Stress- and Inflammation-Induced Health Disorders. Molecules. 2023;28(7):3148. Opened 2026-10-07.
  5. National Center for Complementary and Integrative Health. Elderberry. Last updated November 2024. Opened 2026-10-07.
  6. Murkovic M, Abuja PM, Bergmann AR, Zirngast A, Adam U, Winklhofer-Roob BM, Toplak H. Effects of elderberry juice on fasting and postprandial serum lipids and low-density lipoprotein oxidation in healthy volunteers: a randomized, double-blind, placebo-controlled study. Eur J Clin Nutr. 2004;58(2):244-249. Opened 2026-10-07.
  7. Bitsch I, Janssen M, Netzel M, Strass G, Frank T. Bioavailability of anthocyanidin-3-glycosides following consumption of elderberry extract and blackcurrant juice. Int J Clin Pharmacol Ther. 2004;42(5):293-300. Opened 2026-10-07.
  8. Frank T, Janssen M, et al. Absorption and excretion of elderberry (Sambucus nigra L.) anthocyanins in healthy humans. Methods Find Exp Clin Pharmacol. 2007;29(8):525-533. Opened 2026-10-07.
  9. Centers for Disease Control (CDC). Poisoning from elderberry juice, California. MMWR Morb Mortal Wkly Rep. 1984;33(13):173-174. Opened 2026-10-07.
  10. Drugs and Lactation Database (LactMed). Elderberry. Bethesda (MD): National Institute of Child Health and Human Development; updated April 15, 2025. Opened 2026-10-07.

This page is information, not medical advice. Talk to your doctor or pharmacist about your own situation.