Threptin supplies vital protein of high biological value and is, therefore, valuable for those who, due to illness or faulty dietary habits, do not take sufficient amount of protein daily. It is easily digested and well tolerated, supplies adequate calories for the efficient utilization of protein. Used as a supplement to a diet consisting largely of cereals and vegetables. For better utilization of protein, Threptin should preferably be taken twice or thrice daily, 3-5 diskettes at a time.