Can You Ingest Baking Soda? Truth

Yes, you can ingest baking soda, but only in very small amounts and for specific, short-term purposes. Drinking baking soda mixed with water is an old home remedy for heartburn, and some athletes use it as a performance booster. However, it is not something you should take regularly or without understanding the risks. Baking soda is sodium bicarbonate, a strong alkaline compound that can seriously disrupt your body’s pH balance if you take too much.

What Happens When You Drink Baking Soda and Water?

When you mix baking soda with water and drink it, a chemical reaction happens in your stomach. The sodium bicarbonate neutralizes stomach acid. This is why people have used it for heartburn and indigestion for generations. It works fast, often within minutes.

But the reaction also produces gas. This is why burping is common after drinking it. For some people, this gas causes bloating and discomfort. Research shows that while it can provide quick relief, it is not a long-term solution for acid reflux. If you have chronic heartburn, you need to see a doctor instead of reaching for baking soda.

The effect on your body goes beyond the stomach. Some studies suggest that baking soda can shift your body’s overall pH balance slightly. Your body works hard to keep your blood pH in a very narrow range. Baking soda can temporarily push it toward being more alkaline. This is not dangerous in small doses, but it matters for people with certain health conditions.

Can You Ingest Baking Soda for Athletic Performance?

Some athletes take baking soda before exercise. This practice is called “soda loading.” The idea is that it helps buffer lactic acid buildup in muscles during intense activity. When your muscles produce lactic acid, you feel that burning sensation. Baking soda may help delay that feeling.

Research on this is mixed but interesting. A 2021 review in the Journal of the International Society of Sports Nutrition found that baking soda can improve performance in high-intensity exercise lasting 1 to 7 minutes. Think sprinting, swimming laps, or rowing. The effect is small but real for some people.

But there is a catch. The same review found that about half of people who try it get digestive problems. Nausea, stomach cramps, and diarrhea are common. The dose needed for performance is higher than what you would take for heartburn. Most studies use about 0.3 grams per kilogram of body weight. For a 150-pound person, that is about 20 grams, or roughly 4 teaspoons. That is a lot of baking soda.

Current research suggests that individual response varies wildly. Some athletes benefit. Others just end up sick to their stomach. As of 2026, no major sports organization has banned it, but it is not a magic bullet. If you are not a competitive athlete, there is no good reason to try this.

What Are the Risks of Ingesting Baking Soda?

The risks are real and can be serious. The most common problem is consuming too much. Your body can only handle so much sodium bicarbonate at once. Taking more than 1.5 teaspoons for adults over 60 or 3.5 teaspoons for younger adults in a single day can cause problems.

Here is what can go wrong:

• Sodium overload. Baking soda is very high in sodium. One teaspoon has about 1,200 milligrams of sodium. That is more than half the daily recommended limit for most adults. If you have high blood pressure or heart disease, this is dangerous.
• Metabolic alkalosis. This happens when your blood becomes too alkaline. Symptoms include confusion, nausea, muscle twitching, and hand tremors. Severe cases can lead to coma.
• Stomach rupture. This is rare but documented. The gas produced by the reaction can cause your stomach to expand too fast. If you drink baking soda right after a large meal, the risk goes up.
• Drug interactions. Baking soda can change how your body absorbs other medications. It can make some drugs less effective and others more potent.

Some people report using baking soda for kidney health. This is widely claimed though strong evidence is limited. In fact, people with kidney disease should avoid baking soda unless a doctor prescribes it. Their bodies cannot process the extra sodium and bicarbonate safely.

How Much Baking Soda Is Safe to Take?

If you decide to try it, dosage matters more than anything else. For heartburn, the standard recommendation is 1/2 teaspoon of baking soda mixed in 4 ounces of water. Do not take more than 7 doses in 24 hours. And do not take it for more than two weeks straight.

For athletic performance, the dose is higher but only for specific situations. Do not guess at this. Work with a sports dietitian if you are serious about trying it. They can help you figure out the right amount and timing.

Here is a quick comparison of common uses:

Never take baking soda on a full stomach. Never take it within two hours of taking other medications. And never use it as a daily health tonic. That is not what it is for.

What Does Research Say About Baking Soda for Health Conditions?

Some studies suggest baking soda may have benefits beyond heartburn and sports. A small 2018 study from the Medical College of Georgia found that drinking baking soda water reduced inflammation in people with kidney disease. The study was very small, with only 12 participants. The results are interesting but not conclusive.

Other research has looked at baking soda for autoimmune conditions. The idea is that it may tell your spleen to produce more anti-inflammatory cells. This is still early-stage research. It has mostly been done in animals and lab settings. As of 2026, there is no clinical evidence that baking soda treats rheumatoid arthritis or lupus in humans.

There is also a popular claim that baking soda can cure cancer. This is false. No reputable study has shown that drinking baking soda shrinks tumors in humans. Some alternative medicine websites push this idea, but it is not supported by science. If you have cancer, do not replace your treatment with baking soda.

The bottom line on research is simple. Baking soda has clear, proven uses for short-term heartburn relief and possibly for athletic performance. Everything else is speculative. Do not believe health claims you see on social media without checking the actual science.

What to Avoid When Ingesting Baking Soda

Do not mix baking soda with acidic drinks like lemon juice or vinegar. Some people think this makes it healthier or tastier. It does not. The acid neutralizes the baking soda before it reaches your stomach, making it less effective. It also creates a lot of gas very quickly, which can cause painful bloating.

Do not take baking soda if you are on a low-sodium diet. One teaspoon blows past your sodium budget for the day. If you have high blood pressure, heart failure, or liver disease, skip it entirely.

Do not give baking soda to children under 5. Their bodies are smaller and more sensitive to changes in pH. There have been case reports of seizures and metabolic alkalosis in young children after accidental ingestion.

Do not use baking soda as a daily detox or cleanse. There is no evidence that your body needs help “detoxing.” Your liver and kidneys do that job just fine. Baking soda does not flush toxins out of your system. It just changes your stomach pH temporarily.