It’s commonly assumed that if one probiotic strain has beneficial properties, more strains must be better.

Read this article from Natren, Multi-Strain Probiotics: When More is Not Necessarily Better, to learn why they believe it’s actually better to use a single strain probiotic, or at most a few strains that have been scientifically proven to have health benefits for everyone.

Without doing cultures on every individual, it is impossible to know which of the 160 bacterial species a person carries.

Related Articles:  Testing to find out which bacterial species you carry.