Quick answer
There is no established dose for apple cider vinegar pills. Daily trials of the liquid most often used 15 or 30 mL a day, and meal studies used 10 to 28 g carrying 0.5 to 1.7 g of acetic acid. A pill label's milligrams of powder are not milligrams of acetic acid.1,2
Key facts
- At FDA's expected strength, a 15 mL tablespoon of cider vinegar holds at least 0.6 g of acetic acid.3
- In a capsule study, it took nine capsules to supply 750 mg of acetic acid.4
- Four tablets labeled with 1.5 g of acetic acid did nothing measurable after a meal when swallowed whole.2
- No upper limit is set; liquid vinegar has been studied at up to 30 mL a day for up to 12 weeks.1
The amounts used in studies
Meal studies that found a measurable effect used 10 to 28 g of liquid vinegar, about 2 teaspoons to 2 tablespoons, which carries 0.5 to 1.7 g of acetic acid.2
At the strength FDA expects of cider vinegar, 4 g of acetic acid per 100 mL, a 15 mL tablespoon holds at least 0.6 g of acetic acid and 30 mL at least 1.2 g.3
| Amount of liquid | Acetic acid in it | Where this amount comes from |
|---|---|---|
| 15 mL a day, about a tablespoon | At least 0.6 g, at 4 percent acidity | A common dose in daily trials |
| 30 mL a day, about two tablespoons | At least 1.2 g, at 4 percent acidity | The other common dose in daily trials |
| 25 g with a meal | 1.25 g, at 5 percent acidity | The liquid arm of the tablet comparison study |
| 10 to 28 g with a meal | 0.5 to 1.7 g | The range linked to effects in earlier meal studies |
The useful number is the acetic acid, not the volume of liquid or the weight of powder. FDA notes that natural vinegars normally contain more than 4 grams per 100 mL, and diluted vinegar may not go below that, so the figures above for 15 and 30 mL are minimums.3
What a pill label tells you
In the one capsule absorption study we found, it took nine vinegar capsules taken together to supply 750 mg of acetic acid.4
A label that lists milligrams of apple cider vinegar powder gives the weight of the dried powder, not of the acetic acid in it. When researchers tested eight tablet products, acid content and label claims varied widely from one brand to the next.5
More acid on the label did not mean more effect, either. The tablets in the meal study listed 1.5 g of acetic acid in four tablets, slightly more than the 1.25 g in the liquid dose, yet swallowed whole they made no measurable difference.2
What's in ours
What’s in ours
- Gut Health: Organic Apple Cider Vinegar Powder, 1,000 mg per serving, from the label
Our label gives the weight of organic apple cider vinegar powder in a two-capsule serving, shown in the card, but not its acetic acid content. Until that figure is known, the serving cannot be compared with any amount in the table above.
Is there a maximum dose?
No tolerable upper intake level has been set for apple cider vinegar. Liquid vinegar has been studied at up to 30 mL a day for up to 12 weeks, and we found no long-term safety study of vinegar pills.1,6
Our label says not to exceed two capsules a day. Taking more adds acid exposure without any shown gain: a vinegar tablet has injured the esophagus in a published case, and vinegar draws minerals out of tooth enamel in laboratory tests.5,7
If you take insulin or another medicine that lowers blood sugar, ask your doctor before taking any amount of vinegar.2
Questions people ask
How many apple cider vinegar pills should I take a day?
Follow the label. Ours says two capsules a day with 6 to 8 ounces of water. No trial has set a dose for vinegar pills.1
How many mg of apple cider vinegar pills per day?
The milligrams on the label are powder, not acetic acid, so they are hard to compare. The one capsule absorption study used nine capsules to supply 750 mg of acetic acid.4
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Sources
- Castagna A, Ferro Y, Noto FR, et al. Effect of Apple Cider Vinegar Intake on Body Composition in Humans with Type 2 Diabetes and/or Overweight: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Nutrients. 2025;17(18):3000. Opened 2026-10-01.
- Feise NK, Johnston CS. Commercial Vinegar Tablets Do Not Display the Same Physiological Benefits for Managing Postprandial Glucose Concentrations as Liquid Vinegar. J Nutr Metab. 2020;2020:9098739. Opened 2026-10-01.
- U.S. Food and Drug Administration. CPG Sec. 525.825 Vinegar, Definitions; Adulteration with Vinegar Eels. Compliance Policy Guide, last revised March 1995. Opened 2026-10-07.
- Sugiyama S, Fushimi T, Kishi M, et al. Bioavailability of acetate from two vinegar supplements: capsule and drink. J Nutr Sci Vitaminol (Tokyo). 2010;56(4):266-9. Opened 2026-10-01.
- Hill LL, Woodruff LH, Foote JC, Barreto-Alcoba M. Esophageal injury by apple cider vinegar tablets and subsequent evaluation of products. J Am Diet Assoc. 2005;105(7):1141-4. Opened 2026-10-01.
- Launholt TL, Kristiansen CB, Hjorth P. Safety and side effects of apple vinegar intake and its effect on metabolic parameters and body weight: a systematic review. Eur J Nutr. 2020;59(6):2273-2289. Opened 2026-10-07.
- Willershausen I, Weyer V, Schulte D, Lampe F, Buhre S, Willershausen B. In vitro study on dental erosion caused by different vinegar varieties using an electron microprobe. Clin Lab. 2014;60(5):783-790. Opened 2026-10-07.
This page is information, not medical advice. Talk to your doctor or pharmacist about your own situation.