The consequences of an unfavorable diet can be far-reaching and of different nature. From joint pain to extreme fatigue, many problems and ailments can be traced back to diet. Especially in the case of chronic health problems, nutrition should always be considered as an important pillar. Typical complaints, which are usually related to diet, are, for example, digestive problems such as diarrhea or constipation, abdominal pain, nausea, flatulence, but also food intolerance, chronic inflammation, concentration problems and tiredness. In addition, a miscolonization of the digestive tract with certain bacteria or fungi as well as parasites or a general imbalance in the intestinal flora can lead to various complaints, or arise from complaints that have remained unrecognized for a long time. Then it is important to treat in the right order.