How Much Apple Cider Vinegar Water Should You Drink a Day?

1–2 cups (240–480 mL) of apple cider vinegar water, mixed with 1–2 teaspoons (5–10 mL) of apple cider vinegar in total, is one optional daily amount—not an established health dose. You may need less or none if it causes reflux or tooth sensitivity, or if a medical condition or medication makes it unsuitable for you.

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How much apple cider vinegar water can you drink per day?

There is no officially established daily dose of apple cider vinegar water for general health. The amount above is a modest mixing example, not a requirement or a proven safe limit for everyone. You can drink plain water instead and do not need apple cider vinegar to stay hydrated.

If you want to try it, start with the smaller mixture below and see how you tolerate it. The apple cider vinegar amount is the total for the drink, not an amount to add to every glass of water you drink throughout the day.

For one glass:

1 cup (240 mL) water
1 teaspoon (5 mL) apple cider vinegar

Measure the apple cider vinegar into the water.
Stir and drink the mixture diluted, rather than drinking the vinegar straight.

If you choose the larger optional amount, use up to 2 teaspoons (10 mL) of apple cider vinegar in 2 cups (480 mL) of water for the day. More is not necessarily better, and the research does not establish that this mixture provides a particular health benefit.

Apple cider vinegar is acidic even when diluted. Avoid sipping it continuously over a long period, and rinse your mouth with plain water afterward to help reduce acid exposure to your teeth.

How much should you drink for your goal?

Hydration

The water in the mixture contributes to hydration, but apple cider vinegar does not make it necessary or superior to plain water. Drink according to your thirst and circumstances; if the flavor makes drinking uncomfortable, leave the apple cider vinegar out.

Blood sugar

A 2025 review and meta-analysis of seven controlled studies found improvements in some blood sugar measures among people with type 2 diabetes who consumed apple cider vinegar. The findings do not establish a daily apple cider vinegar water dose for managing blood sugar, and the studies examined apple cider vinegar rather than one standard homemade drink.

Do not use it in place of prescribed diabetes care. If you take insulin or another medication that lowers blood sugar, ask your clinician before using apple cider vinegar regularly.

Weight management

A 2025 meta-analysis of randomized trials found lower body weight on average with apple cider vinegar intake, but results varied across studies. It does not establish a reliable dose of apple cider vinegar water for weight loss, and drinking more should not be expected to produce better results.

For detox claims, hydration supports normal body functions; it does not make apple cider vinegar a detox treatment. The liver and kidneys do most of the body’s detoxification, while the lungs and gut help eliminate waste and sweat removes only trace amounts.

What are the signs you’re overdoing it?

Mouth or throat irritation, worsening heartburn, nausea, or increased tooth sensitivity can be reasons to stop drinking apple cider vinegar water. Frequent exposure to acid can damage tooth enamel, so discomfort is not something to push through. Contact a dentist if tooth sensitivity persists, or a clinician if digestive symptoms continue.

Who should be careful, and when should you get help?

Ask a clinician before drinking apple cider vinegar water regularly if you have reflux, a swallowing problem, diabetes, kidney disease, or low potassium. Also check if you take insulin, other blood sugar-lowering medication, diuretics, or digoxin; these situations may require individual advice.

There is no established health dose for children or during pregnancy or breastfeeding, so ask a healthcare professional before using it regularly in those situations. Using apple cider vinegar in ordinary food is different from taking it routinely for a health goal.

Seek urgent medical care for severe chest pain, trouble breathing, or vomiting blood after drinking it. If you have severe pain or difficulty swallowing, seek prompt medical attention.