Although the intestinal flora is quite stable over time, a number of factors can disturb the normal balance and thus lead to intestinal dysbiosis.
The microbiome contributes to the processing and metabolization of food:
- digestion and absorption of nutrients
- sugar metabolism
- synthesis of short chain fatty acids (eg, synth. of butyrate by Faecalibacterium, Roseburia… is important for colon health… but gives a lot of energy -> obesity)
- synthesis of amino acids and vitamins (vit B12, vit B9, vit K)
- detoxification of pollutants and toxic