02/09/2026
Stomach acid is essential for digestion because it helps break down food, especially proteins, and kills harmful bacteria such as *Helicobacter pylori* that can enter the body through food and water. It also plays an important role in absorbing key nutrients like vitamin B12, iron, and calcium.
However, stomach acid balance can be disrupted by factors such as stress, unhealthy diet, overeating, smoking, excessive alcohol intake, and frequent use of medications like antacids or painkillers. When stomach acid levels become too high or too low, it may lead to problems like acid reflux, indigestion, bloating, or infections, highlighting the importance of maintaining proper stomach acid levels for good digestive health.