5MTHFR and Histamine Intolerance
5MTHFR and Histamine Intolerance The causative factors for histamine intolerance are many: Genetic susceptibility: MTHFR, DAO, MAO, HNMT, PEMT, etc Pathogens Nutrient deficiencies: B12, folate, B6, B2, B1, Zn, Cu, C, methionine Nutrient excesses: histidine, protein excess in general…