Spirulina is considered an alkaline food, meaning it may help neutralize excess stomach acid. Although spirulina does not directly neutralize stomach acid like antacids do, its alkalizing effect may help balance the acidic environment in the stomach. By promoting a more balanced pH in the digestive system, spirulina may reduce the frequency or severity of acid reflux episodes that contribute to GERO.
The powerful antioxidants in spirulina, including beta-carotene, vitamin E, and phycocyanin, can help protect cells in the digestive tract from oxidative stress. In GERO, the acid in the oesophagus can cause oxidative damage, leading to further inflammation and tissue damage. Spirulina's antioxidants may help protect the oesophagus from this damage and contribute to healing.