Each serving of Bluebonnet® Zinc Picolinate is formulated with zinc in a chelate of picolinic acid. Zinc is known for its antioxidant properties, and it also supports the immune system, heart, liver and more. Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans, corn, yeast, gluten, barley, sugar, rice and sodium.