Vitacost Magnesium Citrate - 400 mg per Serving - 120 TabletsVitacost Magnesium Citrate supports normal muscle contraction and relaxation Also supports normal nerve function and the production of protein in body cells. Important for healthy bones Maintains blood pressure already within normal range Free Of Milk, eggs, peanuts, tree nuts, crustacean shellfish, fish, soy, gluten, titanium dioxide.