With a surface area the size of a soccer field, the gastrointestinal tract is exposed to many "environmental influences": above all, diet. The condition of the digestive organs determines whether nutrients can be properly utilized. On the one hand, regular and healthy digestive performance is the basis for optimal utilization of vital substances from food. On the other hand, digestion also serves to rid the organism of metabolic degradation products and other substances that are harmful to the body. Our caloric foods are broken down into their individual components glucose, fatty acids and amino acids during digestion. These food components serve to supply energy and substance. Vitamins, minerals, trace elements and so-called bioactive plant substances, however, enable our body to convert the sugars, fatty acids and amino acids from food into energy and physical building blocks. When our bodies are deficient in these non-caloric micronutrients, it's like wanting to burn wood without matches, or wanting to build houses with brick but without a binder.