You probably have a box of baking soda in your pantry right now, and you probably only use it for baking. That’s leaving most of its value on the table.

Sodium bicarbonate is one of the most studied, most versatile, and least expensive items in the average kitchen. It’s been studied for its effects on exercise performance, digestive comfort, skin irritation, and oral hygiene, and it also doubles as one of the simplest non-toxic cleaning products you can buy.

It’s not a miracle cure, and it won’t replace medical care. But for a couple of dollars, it’s one of the best low-tox swaps available for several specialty products you might already be buying.

What Baking Soda Actually Is

Baking soda, sodium bicarbonate, is a naturally occurring alkaline mineral compound. In practical terms, it neutralizes acids.

When it contacts an acid, it produces carbon dioxide gas. That’s the reaction that makes dough rise in baking. Inside the body, the same acid-neutralizing property is what gives baking soda its effects on digestion, exercise performance, and skin comfort.

It’s inexpensive, shelf-stable, and generally recognized as safe when used appropriately, which is exactly why it’s remained a household staple for generations.

Can Baking Soda Improve Exercise Performance?

This is one of baking soda’s most well-researched uses.

During intense exercise, the body produces hydrogen ions as a byproduct of energy production. As they accumulate, muscles become more acidic; this is part of what causes the burning sensation during a hard workout, and it contributes directly to fatigue.

Baking soda acts as a buffer. By helping neutralize that acidity, it may let you sustain high-intensity effort a bit longer before fatigue sets in.

Research has shown that sodium bicarbonate supplementation may improve performance in activities involving repeated bursts of intense effort, such as sprinting, interval training, rowing, swimming, and resistance training. Many athletes use it strategically before competitions or demanding sessions.

Worth knowing: larger doses can cause digestive discomfort in some people. Start with smaller amounts, and talk to a healthcare professional first if you have underlying health conditions.

Baking Soda for Heartburn and Acid Reflux

Occasional heartburn affects many people, and baking soda has long been a go-to home remedy for one simple reason: it quickly neutralizes stomach acid.

Mixed with water in appropriate amounts, sodium bicarbonate can temporarily reduce excess stomach acidity. That can help with:

• Heartburn
• Acid indigestion
• Sour stomach
• Mild acid reflux

The relief tends to be quick because the reaction with stomach acid happens almost immediately.

Important distinction: this is an occasional tool, not a long-term fix. Persistent reflux or chronic indigestion can signal an underlying issue that deserves a doctor’s evaluation; don’t just mask recurring symptoms with home remedies.

Does Baking Soda Help with Headaches?

Some people swear by a small amount of baking soda in water for headache relief. The evidence here is much thinner than for exercise or digestion.

The theory connects to hydration and acid-base balance, but scientific support for baking soda as a direct headache treatment is limited. It’s important to consider that headaches have many possible causes, such as dehydration, stress, poor sleep, nutritional gaps, eye strain, and illness.

Bottom line: If you’re dealing with severe, frequent, or unusual headaches, see a healthcare professional.

Baking Soda Baths for Irritated Skin

Adding baking soda to a warm bath is one of the most practical, low-tox ways to calm irritated skin.

Many people find it helps with temporary relief from:

• Mild eczema flare-ups
• Itchy skin
• Sunburn
• Bug bites
• Minor skin irritation

How to use it: add roughly one cup of baking soda to a warm bath and soak for 10 to 20 minutes. Baking soda helps balance the skin’s surface pH, which is often why skin feels calmer afterward.

As with any skin remedy, reactions vary; test cautiously if you have sensitive skin, and follow a healthcare provider’s guidance for more severe skin conditions.

Non-Toxic Household Uses Worth Knowing

Beyond the body, baking soda replaces a surprising number of household specialty products, without synthetic fragrances or harsh chemicals.

Natural odor absorber. Place an open box in the fridge, shoes, gym bags, closets, or trash cans to neutralize smells without masking them with fragrance.

Gentle household cleaner. Its mild abrasive texture works on sinks, stovetops, bathtubs, and countertops, no synthetic chemicals required.

Laundry booster. Adding it to a wash load can help neutralize odors and support overall cleaning performance.

Oral care. It’s a common toothpaste ingredient because it removes surface stains and neutralizes oral acids. Some people use it occasionally on its own as part of an oral hygiene routine.

Produce wash. A baking soda soak may remove surface residues from fruit and vegetables more effectively than rinsing with water alone.

Safety Considerations

Baking soda is a genuinely active compound, not an inert powder; using it responsibly matters.

People with high blood pressure, kidney disease, heart conditions, or those on sodium-restricted diets should be cautious, since baking soda contains meaningful amounts of sodium.

Consuming too much can cause:

• Nausea
• Bloating and gas
• Diarrhea
• Electrolyte imbalances
• Elevated sodium levels

Children should never use baking soda internally unless a healthcare professional directs them to do so. As with most wellness tools, more is not better; stick to the recommended amounts.

Frequently Asked Questions

Is baking soda good for acid reflux and heartburn? Yes, for occasional relief. Baking soda mixed with water quickly neutralizes excess stomach acid, which can ease symptoms such as heartburn, indigestion, and sour stomach. It’s best used occasionally rather than as a daily fix; persistent or recurring reflux should be evaluated by a doctor rather than managed long-term with home remedies.

Does baking soda actually improve athletic performance? There’s solid research behind this one. Sodium bicarbonate buffers the acid buildup that contributes to muscle fatigue during intense exercise, and studies have shown potential performance benefits for activities involving repeated high-intensity efforts, such as sprinting, rowing, and interval training. Results vary by individual, and higher doses can cause digestive discomfort, so starting cautiously is recommended.

Is a baking soda bath good for itchy or irritated skin? Many people find relief from adding about one cup of baking soda to a warm bath and soaking for 10–20 minutes. It may help with mild eczema flare-ups, sunburn, bug bites, and general skin irritation by helping balance the skin’s surface pH. Those with sensitive skin should test cautiously, and those with severe skin conditions should seek input from a healthcare provider.

Can baking soda be used as a natural household cleaner? Yes. Its mild abrasive texture makes it effective for cleaning sinks, stovetops, bathtubs, and countertops without synthetic fragrances or harsh chemicals. It also works well as an odor absorber in refrigerators, shoes, and trash cans, and can be added to laundry loads as an odor-neutralizing booster.

Is it safe to drink baking soda every day? No. Baking soda contains significant sodium and is meant for occasional use, not daily consumption. People with high blood pressure, kidney disease, heart conditions, or sodium-restricted diets should be especially cautious. Overuse can lead to nausea, bloating, electrolyte imbalances, and elevated sodium levels. It should never be given to children internally without a healthcare professional’s direction.

Does baking soda help with headaches? The evidence here is weaker than in its other uses. Some people report relief from drinking baking soda dissolved in water, possibly related to hydration and acid-base balance, but this isn’t a scientifically proven headache remedy. Since headaches have many different causes, what works anecdotally for one person may not work for another. Frequent or severe headaches warrant evaluation by a healthcare professional.

References:

1. Senewiratne NL, Woodall A, Can AS. Sodium bicarbonate. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan–. Updated Feb 12, 2024. Available from:https://www.ncbi.nlm.nih.gov/books/NBK559139/