Some claim diluted apple cider vinegar can help treat acid reflux and heartburn by supporting a healthy gut microbiome and helping balance stomach acid levels.

However, these claims do not have scientific backing. In fact, taking apple cider vinegar may even worsen acid reflux symptoms.

Acid reflux occurs when acid from the stomach flows upward into the esophagus. This causes a sour taste in the mouth and a burning sensation in the chest. Increasing the intake of acidic food and drink will not remedy these symptoms.

For some people, apple cider vinegar makes heartburn worse. Those who have a very irritated food pipe may experience further burning and irritation after drinking vinegar.

It is not advisable to drink apple cider vinegar for moderate to severe acid reflux, heartburn, or gastroesophageal reflux disease (GERD).

In general, the risk of using apple cider vinegar for acid reflux is minimal. Many people drink it daily for blood sugar management, weight loss, and more without experiencing adverse effects. That said, no research confirms that it is safe to use in the long term.

People who wish to try apple cider vinegar for mild reflux can mix between a teaspoon and a tablespoon of the vinegar into a glass of water. Taking this before or after meals may reduce acid reflux symptoms in some people.

For these reasons, it may be best to try some proven home remedies for acid reflux, such as avoiding food triggers, maintaining a healthy weight, and changing the position of the bed.

People who have continuing or severe reflux or heartburn should see their doctor to discuss medications or other treatments that can relieve symptoms.