A healthy intestinal flora has a positive effect on general well-being. A Mediterranean and predominantly vegetarian diet is recommended.

Excessive consumption of sausages and processed meat can damage the intestinal flora and hinder weight loss. Fructose (fruit sugar) can lead to stomach and intestinal problems. Industrial cooking oils that are rich in omega-6 fatty acids can promote inflammation in the body, including in the gut. Gluten, the main protein in grains, is a risk factor for irritable bowel syndrome and autoimmune diseases.