Vitamin B12 is involved in the manufacture of red blood cells and is required for a healthy heart, as well as for a healthy nervous system. As it is found mainly in animal based foodstuffs such as meat, practitioners frequently recommend this particular B vitamin to vegetarians and vegans. One Tablet of Lamberts Vitamin B12 provides: Vitamin B12 1000µg Other Ingredients:Tableted with: DiCalcium Phosphate, Cellulose, Silicon Dioxide, Stearic Acid, Magnesium Stearate.Directions: 1 Tablet daily with a meal. Caution: Do not take if pregnant or breast feeding.