What foods contain histadine and in what amounts? what is it's role? can it have an effect on the the gi tract?

Histidine: Meat, fish, poultry, nuts, seeds, and whole grains contain large amounts of histidine- an essential amino acid. It facilitates growth, the creation of blood cells, and tissue repair. The body metabolizes histidine into histamine, which is crucial for immunity, reproductive health, and digestion. Deficiencies can lead to anemia, arthritis and kidney disease as well as infertility and malabsorption