Seniors: Here’s What You Should Know About Baking Soda and Your Health

Baking soda is one of those inexpensive household products that seems to have endless uses. It can help baked goods rise, absorb odors, clean certain surfaces, and even appear in some oral-care products.

Because it is so familiar, you might assume that baking soda is automatically harmless when used as a home remedy. But baking soda is sodium bicarbonate, a substance that contains a significant amount of sodium, and taking it by mouth is not something older adults should treat casually.

For seniors in particular, medications, kidney function, heart health, blood pressure, and dietary restrictions can affect whether sodium bicarbonate is appropriate.

Here is what you should know before using baking soda for health purposes.

1. Baking Soda Is Not Just a Kitchen Ingredient

Baking soda is the common name for sodium bicarbonate.

When used in cooking, it is generally an ingredient rather than a medication. However, sodium bicarbonate is also used in certain medical products, including some antacids for temporary relief of heartburn and acid indigestion.

That distinction matters.

Using a small amount of baking soda in a recipe is very different from deliberately drinking baking soda dissolved in water as a home remedy.

Some people use it because they have heard that it can relieve indigestion, change the body’s pH, improve exercise performance, or provide other health benefits. These claims should not be treated as a reason to consume it regularly without appropriate medical guidance.

2. The Sodium Content Deserves Attention

The biggest concern for many older adults is the sodium.

Your body needs some sodium for normal nerve, muscle, and fluid functions. However, too much sodium can contribute to increased blood pressure, particularly when the kidneys cannot remove excess sodium efficiently.

Baking soda contains sodium, even though it does not taste like table salt.

That means someone following a sodium-restricted diet should not assume that baking soda is a harmless alternative simply because it is not being used as a traditional salt.

The U.S. Food and Drug Administration specifically notes that sodium bicarbonate contributes sodium to the diet.

3. Older Adults May Need Extra Caution

Age itself does not mean you can never use sodium bicarbonate.

However, older adults are more likely to take multiple medications and may also have health conditions that affect how medicines and electrolytes are handled by the body. The FDA notes that changes in kidney and liver function with aging can affect how medicines are processed and eliminated.

This is particularly relevant if you regularly use sodium bicarbonate as an antacid or home remedy.

Before taking it regularly, talk with your doctor or pharmacist if you have:

• High blood pressure
• Kidney disease
• Heart failure
• Swelling or fluid retention
• A sodium-restricted diet
• Other significant medical conditions
• Several prescription or over-the-counter medications

MedlinePlus specifically advises people with high blood pressure, congestive heart failure, kidney disease, or a sodium-restricted diet to discuss sodium bicarbonate with their healthcare professional before use.

4. It Can Help With Occasional Heartburn—but Follow Directions

Sodium bicarbonate is an antacid that can temporarily relieve heartburn and acid indigestion.

That does not mean more is better.

If you are using an approved sodium bicarbonate antacid, follow the product’s directions carefully. Do not take larger amounts because you think a stronger dose will work faster.

MedlinePlus advises that sodium bicarbonate should not be used for longer than two weeks unless a doctor recommends otherwise. If symptoms continue or do not improve, you should seek medical advice rather than continually treating them yourself.

Frequent heartburn may have an underlying cause that deserves evaluation.

5. Don’t Assume Baking Soda Can “Alkalize” Your Body

A popular online claim is that drinking baking soda can make the body more alkaline and therefore improve overall health.

Your body has sophisticated systems that regulate its acid-base balance. Taking baking soda without a medical reason is not a general wellness strategy.

Sodium bicarbonate does have legitimate medical uses in specific circumstances, but that is very different from taking it routinely as a supposed health booster.

If you have been told that you have an acid-base or electrolyte problem, follow the treatment recommended by your healthcare professional rather than trying to correct it yourself with household baking soda.

6. Baking Soda Can Interact With Other Medicines

This is especially important for seniors who take several medications.

Sodium bicarbonate can affect how certain medicines are absorbed, which is why MedlinePlus advises taking it at least two hours apart from other medicines.

Because medication combinations can be complicated, do not assume that an over-the-counter product is automatically safe simply because it is sold without a prescription.

Make a complete list of your prescription medications, over-the-counter medicines, vitamins, and supplements and discuss them with your pharmacist or doctor when starting a new product.

The FDA recommends that older adults tell their healthcare team about all medicines and supplements they use, including over-the-counter products such as antacids.

7. Don’t Confuse Baking Soda With Baking Powder

Baking soda and baking powder are not the same thing.

Baking soda is sodium bicarbonate. Baking powder typically contains sodium bicarbonate along with acidic ingredients and other components that allow it to produce carbon dioxide during baking.

Neither should be treated as a general-purpose health supplement.

If a recipe calls for baking soda, use the amount specified. There is no health advantage to adding extra simply because you believe more will provide additional benefits.

8. What About Using Baking Soda for Your Teeth?

Baking soda is found in some toothpastes and oral-care products.

The American Dental Association notes that toothpastes containing sodium bicarbonate can help neutralize plaque acidity.

However, that does not mean you should aggressively scrub your teeth with dry baking soda.

For everyday dental care, a fluoride toothpaste and regular brushing and interdental cleaning remain important. If you have sensitive teeth, gum disease, dentures, crowns, or other dental concerns, ask your dentist about the best products for your situation.

Baking soda also has a role in certain mouth-rinse preparations used for specific oral conditions, but those uses should not be confused with drinking baking soda for general health.

9. Possible Side Effects Should Not Be Ignored

Sodium bicarbonate can cause side effects, particularly when used incorrectly or in excessive amounts.

MedlinePlus lists increased thirst, stomach cramps, and gas among possible side effects. More serious symptoms can include weakness, swelling of the feet or lower legs, nausea, slow breathing, or other concerning changes.

If you develop significant symptoms after taking sodium bicarbonate, stop and seek medical advice.

Do not assume that an inexpensive household product cannot cause serious problems simply because it is commonly used in cooking.

10. Never Use Large Amounts as a Home Remedy

One of the biggest mistakes is assuming that because a small amount is used in food, a much larger amount must also be safe.

That is not how medication safety works.

Sodium bicarbonate can add a substantial sodium load, and excessive use can disturb the body’s electrolyte and acid-base balance.

The FDA’s over-the-counter antacid guidance places specific limits on sodium bicarbonate products and includes lower maximum daily amounts for people aged 60 and older.

This is another reason to follow the label of an approved product rather than estimating doses with a kitchen spoon.

Safer Ways to Think About Baking Soda

Baking soda can remain a useful household product without becoming a daily health remedy.

Use it appropriately in cooking. If you want to use a sodium bicarbonate product for heartburn, choose an appropriate product and follow its instructions.

For recurring digestive symptoms, persistent heartburn, or concerns about your health, address the underlying issue with a healthcare professional instead of relying on baking soda indefinitely.

And if you are considering drinking baking soda because you saw a health claim online, pause before trying it.

Ask yourself:

What am I trying to treat, how much sodium will this add, and could it interact with my medications or health conditions?

Those questions can prevent an unnecessary health problem.

When Should You Talk to Your Doctor?

Before regularly taking baking soda for a health purpose, talk with your healthcare professional if you have kidney disease, heart failure, high blood pressure, or a condition requiring you to restrict sodium.

You should also ask before using it regularly if you take several medications.

And if you have persistent heartburn, don’t keep masking the symptoms with an antacid indefinitely. Recurring symptoms deserve proper evaluation.

The Bottom Line

Baking soda is a useful ingredient and has legitimate medical applications, but it is not a harmless cure-all.

For seniors, the sodium content and potential medication interactions deserve particular attention. People with high blood pressure, kidney disease, heart failure, or sodium restrictions should be especially cautious.

Used appropriately, sodium bicarbonate can be useful. Used excessively or as an unproven daily health remedy, it can create unnecessary risks.

The safest approach is simple: use baking soda for its intended purpose, follow product directions, and ask a doctor or pharmacist before using it regularly as a home treatment.