histidine

Histidine is an essential amino acid, meaning the body cannot produce it, so it must be obtained from food. It plays a vital role in building proteins and is involved in maintaining healthy tissue. Histidine is also a precursor to histamine, a compound important for immune responses, allergies, and regulating stomach acid. It can act as a buffer to help maintain the body's pH balance. Found in foods like meat, fish, and dairy, histidine supports various bodily functions, especially in growth, healing, and immune health.