Probiotic supplements are basically the stars of the probiotic world, so to speak, right now because most of the attention is on them, ever since they've appeared. Many people were surprised, many were confused, how many knew about healthy bacteria? Many only knew about the bad ones that caused infections, and thought that there were no other types of bacteria, that all of them were bad and to be avoided, however that is certainly not the case, since we do have probiotic supplements and probiotic bacteria, probiotic foods, etc.
Each strain is unique as in each strain has different functions. For example, to understand better, even though two strains may belong to the same genus, they are not the same and you can expect different benefits, such as Lactobacillus Acidophilus and Lactobacillus Rhamnosus. Lactobacillus Acidophilus is proven to have positive influence on blood pressure and cholesterol as well as help with infections, bacterial or fungal, nutritional benefits, etc. Lactobacillus Rhamnosus has been proven to help with vaginal or urinary infections, colds and flus, help with eczema or inflammations, with glucose, etc. Because of what we know about strains, we know that we need as many of them as possible in the body for good health, good immune system and digestion and so on, so one of the if not the most important thing to look for in a supplement is strains.