Produces energy in the body and supports the reduction of ammonia levels. Hypoallergenic. Gluten and casein free. Capsules are plant based. Ultra Tested®. Kirkman’s Alpha-Ketoglutaric Acid is an organic acid that is important for the metabolism of all essential amino acids and the transfer of cellular energy in the citric acid cycle. By itself, alpha-ketoglutaric acid is a strong organic acid, and taking it by mouth can upset the stomach or irritate the esophagus. Kirkman® has solved this problem by blending alpha-ketoglutaric acid with calcium and magnesium salts to produce a “bi-element buffered alpha-ketoglutaric acid” that will not produce excess acidity. This product has a great citrus taste! Free Of: Milk, Eggs, Fish, Shellfish, Tree Nuts, Peanuts, Wheat or Soy. Other Ingredients: Vegetarian Capsule (hypromellose and water), Microcrystalline Cellulose, L-Leucine, Silicon Dioxide Warnings: STORE IN A COOL DRY PLACE AND TIGHTLY CAPPED. KEEP OUT OF THE REACH OF CHILDREN.