Enzymes are responsible for the millions of different molecular transactions which sustain our life. Many enzymes must have one or two vitamins and at least one critical mineral to function. At the appropriate place inside a brain cell, two enzymes and vitamin B 6 transform tryptophan to serotonin. 5-Hydroxytryptophan STEP 2. Prenutrients The size and identity of food molecules are important to us when we consider the problem of food allergy.
Proteins are large molecules containing hundreds of amino acids.
Cells do not utilize protein to make protein. Food protein is digested in GIT into short peptides and free amino acids which are transported across the GIT wall. They are then transported via the blood, first to the liver and later to all body cells. The idea that we should eat food combinations that result in a defined proportion of Carbohydrate, Fat, and Protein is basic to nutritional thinking. The main area of dispute in this recommendation is the proportion of fat and carbohydrate.