Designs for Health Histagest-DAO Tablets Douglas Labs Sustainable sourcing: We source cold-water

Sustainable sourcing: We source cold-water fish from fisheries that practice sustainable fishing to help protect the species and their ocean environments

and the parasympathetic nervous system

It is designed to get to the source of chronic symptoms by targeting radioactive elements

Help Protect Macula

Designs for Health Histagest-DAO Tablets Douglas Labs Sustainable sourcing: We source cold-waterHistaGest DAO provides supplemental diamine oxidase (DAO), the enzyme responsible for breaking down food derived histamine, to help support normal and healthy histamine metabolism.* Histamine is a bioactive compound produced in the body in response to an injury or the presence of foreign substances and is present in all foods in the diet in various degrees. Some foods are known to be high in histamines, such as fermented foods and alcoholic beverages.