Why Stomach Acid Is Good For You

Stomach acid, or hydrochloric acid (HCl), plays an essential role in maintaining optimal health. Found in the stomach at an extremely low pH level (1.5–3), it performs many vital functions, including breaking down food, preventing bacterial and fungal overgrowth, and aiding in nutrient absorption.

Many people associate stomach acid with symptoms such as heartburn, indigestion, acid reflux, and GERD. To relieve these symptoms, they often take medications like Tums to neutralize acidity or are prescribed proton pump inhibitors (PPIs) like Prilosec, which can reduce HCl levels by up to 90%. However, few people realize that these medications are not intended for long-term use. Prolonged use can lead to numerous side effects and may actually worsen the root cause of the symptoms. I intentionally refer to these as symptoms rather than conditions because they often stem from a deeper underlying issue.

At the top of the stomach is the Lower Esophageal Sphincter (LES), which opens and closes in response to the stomach’s pH. If stomach acid is not within the optimal pH range, the LES can remain open—leading to acid reflux and heartburn. Over time, this can contribute to more serious conditions such as GERD, esophageal cancer, atrophic gastritis, and Barrett’s esophagus.

If you experience heartburn or acid reflux, you might consider natural supports such as betaine HCl with pepsin, apple cider vinegar before meals, or digestive bitters to help increase stomach acid production.

Other contributing factors to low stomach acid include:

• Processed foods

• Stress

• Antibiotic use

• Lack of physical activity or excessive intense exercise

• Alcohol consumption

• Helicobacter pylori (H. pylori) infection

• Aging

• Food allergies or intolerances

• Pregnancy and hormonal changes