What is apple cider vinegar (ACV)?

Apple cider vinegar is a fermented apple vinegar that contains acetic acid and other fermentation byproducts. It is commonly used as a food ingredient and as a dietary supplement.

Does apple cider vinegar help with blood sugar control?

Some evidence suggests ACV may reduce post-meal blood glucose and improve insulin sensitivity, particularly in people with insulin resistance. It is not a replacement for diabetes medications or medical care.

Can apple cider vinegar help with weight loss?

ACV may support modest weight loss for some people, possibly by increasing satiety and reducing calorie intake. Effects are generally small and work best alongside diet and activity changes.

What is a typical dosage of apple cider vinegar?

A common supplemental range is about 15–30 ml per day, often diluted in water and taken with meals. Start with a smaller amount to assess tolerance.

What are the side effects and precautions for ACV?

Undiluted ACV can irritate the throat and damage tooth enamel, so dilution is recommended. It may also worsen reflux in some people and can interact with certain medications; consult a clinician if you use glucose-lowering drugs or have chronic conditions.

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Apple Cider
Vinegar

Moderate study situation·7/10

A higher score indicates better study conditions, but not necessarily effectiveness.

Fermented apple vinegar used for digestive health and metabolic support, with evidence for glucose control and weight management.

Digestion & Gut Health Glucose Metabolism Weight Management

dose range

15–30 ml

Once or twice daily, with meals.

Consumption

Dilute 15–30 ml in at least 8 oz (240 ml) of water before drinking; ideally take with food to minimize GI discomfort and tooth enamel exposure.

Not fat-soluble.

Best time

Typically taken with or shortly before meals; always dilute.

Description

Apple cider vinegar (ACV) is a fermented liquid rich in acetic acid and bioactive compounds, often used as a dietary supplement for its purported health benefits, especially for blood sugar regulation, weight management, and digestive support.

benefits

Main effects with level of evidence

Moderate

Note on evidence

There is moderate human evidence for effects on postprandial blood sugar and modest weight changes; other uses are less substantiated.

Blood Sugar Regulation

Moderate

ACV may reduce post-meal blood sugar levels and improve insulin sensitivity, especially in people with insulin resistance or type 2 diabetes.

Particularly relevant for: People with impaired glucose tolerance · Individuals with type 2 diabetes

S1 · Johnston CS et al. (2017), Effect of Apple Cider Vinegar on Delayed Gastric Emptying and Postprandial Glucose in Adults with Managed Type 2 Diabetes Mellitus: A Randomized Crossover Study. PubMed S8 · Heidari S et al. (2022), A systematic review on the effect of apple cider vinegar on glycemic control, weight loss, and lipid profile. J Diabetes Metab Disord.

Weight Management

Moderate

Regular use of ACV is associated with modest reductions in body weight and body fat, likely due to enhanced satiety and reduced caloric intake.

Particularly relevant for: Overweight adults · Individuals seeking weight loss

S2 · Kondo T et al. (2009), Vinegar Intake Reduces Body Weight, Body Fat Mass, and Serum Triglyceride Levels in Obese Japanese Subjects: A Randomized, Controlled Trial. PubMed S7 · Mayo Clinic – Apple cider vinegar: Can it help with weight loss?S8 · Heidari S et al. (2022), A systematic review on the effect of apple cider vinegar on glycemic control, weight loss, and lipid profile. J Diabetes Metab Disord.

Digestive Health and Antimicrobial Effects

Limited

ACV exhibits antimicrobial properties that may support digestive health and help inhibit harmful bacteria in the gut.

Particularly relevant for: General population · People seeking gut health support

S3 · Budak NH et al. (2014), Functional properties of vinegar. NIH/PMC S4 · Harvard T.H. Chan School of Public Health – Apple cider vinegar

Safety & Information

Important safety information & known risks

For educational purposes only • not medical advice

Generally safe in moderate, diluted doses but can cause adverse effects in sensitive individuals or if overused.

warning notices

May erode tooth enamel and irritate the throat or stomach if undiluted.
Can worsen symptoms of gastroparesis or cause GI upset.
Long-term high consumption may lead to low blood potassium.
Do not use if you have chronic low potassium or are taking potassium-lowering diuretics or digoxin.
Avoid if you have gastroparesis due to potential delayed gastric emptying.
Dilute before consuming to reduce risk of tooth enamel erosion and throat irritation.
Monitor blood glucose closely if using insulin or antidiabetic medication.

Known interactions with medications