If you have histamine intolerance, you may be relying on Diamine Oxidase (DAO) supplements to stay well, but how do you know you’re buying a product that contains active enzyme? If it’s not active in sufficient quantities, it’s not working. You may not only be wasting your money, but risking  your wellness too. At Allergy Best Buys we’ve always purchased the best we can buy, direct from the manufacturer. No corners cut. No middle men. The results of recent comparative brand testing shared with me by the lab at Dr Healthcare are frankly shocking. I’d love to share the entire...