This module will consider the biochemistry of carbohydrates, fats, proteins and vitamins and their usage in metabolic processes. Much attention will be paid to the control of metabolism by the endocrine system particularly insulin and its antagonists thyroid and growth hormone and diseases where these hormones are deficient and in excess. Drugs for the treatment of diabetes and thyroid diseases will be considered. Usage and balance of several minerals will be considered using calcium as an example; control of plasma calcium will be stressed. Obesity and anorexia will be considered