Insulin, glucose and feeding behaviour in the rat: a reappraisal of the glucostatic theory.

Many celluar processes require energy. Fuel for producing this energy is taken up as food and reaches the cells via the blood, after digestion and absorption in the intestines. The most important fuels are glucose, free fatty acids and amino acids. The absorbed fuel can be used directly but can also be stored in the reserve tissues (liver and adipose tissue) form wich the substances can be released when needed. ... Zie: Summary