Mixing vinegar (a weak acid) and baking soda (a base) causes a fizzy chemical reaction that releases carbon dioxide gas. Some people drink this mixture hoping to relieve indigestion or boost health, but the effects inside your body differ from the reaction in the glass.
Understanding what happens when you drink this mix helps you decide if it’s safe or useful for your digestion and overall health.
Effects of Drinking Vinegar and Baking Soda
Drinking vinegar and baking soda together causes a chemical reaction that produces carbon dioxide gas, water, and sodium acetate. This fizzing effect can lead to bloating and discomfort but does not provide proven health benefits.

When you mix baking soda (a base) with vinegar (an acid) in your stomach, they react immediately to form carbon dioxide bubbles and salt water. The gas causes the bubble-filled fizz you feel. Baking soda briefly neutralizes stomach acid, but because vinegar is acidic, it cancels out this effect before you even drink the mix.
The reaction produces sodium acetate and adds a considerable amount of sodium to your body. Baking soda contains about 1250 mg of sodium per teaspoon, which is significant compared to the daily recommended limit of 2300 mg for most adults. Extra sodium can affect blood pressure and kidney function, especially if you consume this mixture regularly.
There is no solid evidence that this combination detoxifies your system or balances your body’s acidity. Claims about vinegar and baking soda as a daily health remedy lack scientific support and could cause unwanted side effects like indigestion or sodium overload.
| Component | Effect or Content |
|---|---|
| Baking soda | Neutralizes acid, adds sodium |
| Vinegar | Acidic, cancels baking soda’s neutralizing effect |
| Carbon dioxide gas | Causes fizz and bloating |
| Sodium | About 1250 mg per teaspoon of baking soda |
Why the Carbon Dioxide Gas Matters for Digestion
Carbon dioxide gas from drinking vinegar and baking soda can cause bloating, burping, and worsen acid reflux symptoms. The fizz increases pressure in your stomach, which may push acid up into your esophagus.
Carbonated beverages relax the lower esophageal sphincter, the valve that keeps stomach acid out of the throat. This relaxation allows acid to rise more easily, making symptoms of heartburn worse. The gas buildup can also cause discomfort and indigestion by stretching the stomach lining.
In rare and extreme cases, excessive gas and pressure can lead to stomach distension or even rupture, though this is very uncommon. Still, the risk increases if you have a sensitive digestive system or existing gastrointestinal issues.
Because of these effects, children and sensitive individuals should avoid consuming vinegar and baking soda mixtures. For example, a 5-month-old baby should never be given this combination as it can cause severe gas, discomfort, and potential harm.
How Sodium From Baking Soda Affects Your Health
Baking soda contains about 600 mg of sodium in just half a teaspoon, which is a significant portion of the daily recommended limit. Most adults should keep sodium intake below 2,300 mg per day to protect heart and kidney health.

Drinking vinegar and baking soda together adds this sodium load, which can raise blood pressure in people sensitive to salt. If you have hypertension or kidney disease, the extra sodium may worsen your condition.
Using baking soda regularly or in large amounts increases the risk of metabolic alkalosis, a condition where your blood becomes too alkaline. This can disrupt your body’s electrolyte balance, causing symptoms like muscle twitching, confusion, or even seizures in severe cases.
Sodium from baking soda can affect how some medications work, especially diuretics, blood pressure drugs, and lithium. If you take these, check with your healthcare provider to understand any risks.
It’s not safe to drink vinegar and baking soda every day. Occasional use might be harmless for most healthy adults, but long-term or frequent use raises risks and should be avoided unless your healthcare provider advises otherwise.
Vinegar and Baking Soda for Heartburn and Weight Loss
Baking soda alone can temporarily relieve heartburn by neutralizing stomach acid. However, mixing it with vinegar before drinking cancels this effect because vinegar is acidic and reacts immediately with baking soda, producing carbon dioxide gas instead of reducing acidity.
The fizz created by vinegar and baking soda may worsen acid reflux symptoms by increasing stomach pressure and causing bloating or burping. Drinking this mixture as a remedy for heartburn is not recommended.
No scientific evidence supports claims that vinegar and baking soda help with weight loss or boost metabolism. Any idea that this mixture “detoxifies” or burns fat lacks credible research.
| Drink | Effect on Heartburn |
|---|---|
| Baking soda dissolved in water | Neutralizes stomach acid temporarily, may relieve heartburn |
| Vinegar and baking soda together | Fizz increases reflux risk; acid neutralization is negated |
| Commercial antacids | Formulated to neutralize acid safely and effectively |
Plain baking soda water is usually safer and more predictable than the vinegar and baking soda combination for heartburn relief. Commercial antacids offer measured doses and fewer risks of side effects like rebound acidity.
Drinking vinegar regularly can damage tooth enamel and irritate your throat and stomach lining. Vinegar’s acid also creates a risk of rebound acidity after the initial effect wears off.
Safer Alternatives for Indigestion and Hydration
The vinegar and baking soda mix is neither a reliable weight loss aid nor a health booster. Drinking water with vinegar and baking soda together mostly produces gas and sodium without proven benefits. Baking soda mixed with vinegar offers no established health advantages and carries risks from the reaction.
Plain baking soda dissolved in water can sometimes relieve heartburn when used occasionally, as it neutralizes stomach acid temporarily. However, frequent use is not advised due to its high sodium content. Diluted apple cider vinegar might help some people with low stomach acid, but scientific evidence is weak and inconsistent.
Commercial antacids like Tums or famotidine are safer and more effective options for heartburn relief. They provide controlled acid neutralization or reduction without the gas and sodium load of baking soda and vinegar. Lemon water or electrolyte drinks improve hydration safely and are better choices during illness or dehydration.
Avoid using vinegar and baking soda daily for indigestion or hydration. The sodium and gas produced can worsen reflux, raise blood pressure, or cause bloating. Instead, stick to proven remedies and hydration options that carry fewer risks.
What To Do If You’ve Drunk Vinegar and Baking Soda
Drinking a small amount of vinegar and baking soda usually causes only mild bloating and burping that pass quickly without harm. For example, dissolving 5 grams of baking soda in water followed by a glass with a spoon of vinegar will produce gas and some discomfort but is unlikely to cause serious problems in a healthy adult.
If you experience severe abdominal pain, vomiting, swelling of the face or throat, or difficulty breathing after drinking this mixture, seek medical help immediately. These symptoms may indicate an adverse reaction needing urgent care.
Avoid repeating this drink if you have heartburn, high blood pressure, kidney problems, or are on sodium-restricted diets. The extra sodium and gas can worsen these conditions.
Drink plain water to stay hydrated and help your body clear the excess sodium. Monitor your symptoms closely for any worsening discomfort or new signs.
