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Acid reflux is a burning sensation in the chest that some people experience after eating. Baking soda may help relieve symptoms, but people should use it with care.

Acid reflux, also known as heartburn, occurs when stomach acid backs up into the food pipe, causing discomfort. Some people may experience a sour taste in their mouth.

According to the American College of Gastroenterology, over 60 million Americans experience acid reflux at least once a month. Some studies suggest over 15 million have it daily.

Anyone who experiences acid reflux more than twice a week should seek medical treatment, as it may be a sign of gastroesophageal reflux disease (GERD) or another underlying condition.

However, if acid reflux comes and goes and lasts less than 2 weeks, baking soda, or sodium bicarbonate may help.

Some over-the-counter (OTC) and prescription drugs for acid reflux contain sodium bicarbonate. For example, Zegerid combines sodium bicarbonate with omeprazole.

However, some people also use baking soda from the kitchen as an antacid to counteract acid reflux.

baking sodaShare on Pinterest
Add half a teaspoon of baking soda to a glass of water to relieve occasional heartburn.

Baking soda — or sodium bicarbonate — is a salt that consists of sodium ions and bicarbonate ions.

It usually appears as white crystalline solid or a fine powder. Tablets and capsules containing sodium bicarbonate are also available.

People mainly use baking soda as a rising agent, for example in cake making. It is also an ingredient in dental hygiene products and a natural cleaning agent.

For medical purposes, sodium bicarbonate can make the urine more alkaline, for example, if a person has a urinary tract infection. A doctor should supervise its use, however, as it can have adverse effects.

Common side effects of baking soda include:

  • gas and bloating
  • increased thirst
  • stomach cramps

If any of these symptoms persist or are severe, contact a doctor.

Anyone who experiences heartburn for longer than 2 weeks should also see a doctor.

Baking soda and existing medical conditions

People with the following medical conditions should avoid taking baking soda unless their doctor advises them to:

  • alkalosis, when the body's pH is higher, or more alkali, than normal
  • appendicitis
  • edema, which is swelling caused by excess fluid in the body's tissues
  • heart disease
  • high blood pressure
  • kidney disease
  • liver disease
  • preeclampsia, a condition during pregnancy that features high blood pressure, edema, and excess proteins in the urine

Baking soda is not suitable for acid reflux during pregnancy unless a doctor recommends it.

Sodium bicarbonate interactions

Baking soda can interfere with how the body absorbs some medications. People should not take it within 2 hours of other medicines.

It lowers stomach acid levels, which means it can interfere with the body's ability to break down and absorb medications.

In addition, baking soda can interact with the following types of medications:

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Make sure you take baking soda with plenty of water, and check first with a doctor if you are taking another medication.
  • amphetamines, including dextroamphetamine and methamphetamine
  • benzphetamine
  • digoxin
  • elvitegravir
  • gefitinib
  • ketoconazole
  • ledipasvir
  • memantine
  • pazopanib

This list is not exhaustive, and sodium bicarbonate can interact with other medications.

People should always tell their doctor which medications they are taking, whether prescription, OTC, supplements, or alternative remedies when discussing the use of baking soda as an antacid.

There are many different treatments for acid reflux, including lifestyle changes, prescription and OTC medications, and surgical interventions.

Lifestyle changes

People can reduce heartburn and acid reflux naturally by implementing some or all of the following changes:

Maintaining a healthy weight: Staying within a healthy weight range in relation to height can reduce some of the pressure on the stomach. This prevents the stomach acid from being forced up the food pipe.

Knowing and avoiding food triggers: Certain foods and drinks trigger acid reflux. Triggers vary between individuals, but they most commonly include alcohol, chocolate, garlic, onions, caffeine, fried foods, and high-fat foods. Avoiding triggers is a simple way to reduce heartburn.

Avoiding overeating or eating too quickly: Eating large meals makes it difficult for the lower esophageal sphincter (LES) to close properly. The LES acts as a valve that separates the food pipe from the stomach and stops acid from rising. Eating too quickly can also contribute to heartburn.

Sit up straight: Other eating habits that can reduce the risk of getting heartburn include sitting up straight to eat and waiting at least 2 to 3 hours after eating before lying down.

Wearing loose clothing: Tight-fitting clothing puts pressure on the stomach.

Quitting smoking: There is a clear link between smoking and GERD.

Raising the head of the bed: People who experience acid reflux at night may benefit from raising the head of their bed with blocks or wooden wedges.