Based on the fact that the use of different lactic species in a single formula more closely approximates the normal composition of intestinal flora, we should favour microbiotic formulations composed of many strains. These complexes better reflect the natural flora composition and since microbiotic properties are different from one strain to another, each will contribute specific inhibitive functions against pathogenic or putrefactive micro-organisms. Microbiotic complexes are also more recommendable since each human’s intestinal flora has a unique bacteria community (very similar to fingerprints) and is personalised to each individual. Therefore, each person will react differently to the absorption of the same microbiotic strain. For some individuals, L. acidophilus might be the most efficient strain while for others L. rhamnosus or L. casei might adapt more easily to their intestinal flora. This is why microbiotics complexes composed of a larger strain variety will likely be more effective than a single strain product.
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