Digestive enzymes break down proteins, cellulose, starches and other foodstuffs. In doing this they make it possible for the intestine to absorb nutrients. The digestive process is therefore inhibited if these enzymes are absent or deficient. The cause of enzyme deficiency maybe from external factors such as environmental toxins or consuming toxic food such as unsaturated and hydrogenated fats. This can then influence the internal ‘environment’ with decreased or absent production due to pancreatic problems or brush border dysfunction.