Probiotics will compete with whatever is in your gut. If you have a messed up microbiota, then that would be a good thing. If you have a healthy microbiota, the

Probiotics will compete with whatever is in your gut. If you have a messed up microbiota, then that would be a good thing. If you have a healthy microbiota, then taking probiotics could backfire. Taking probiotics can slow down the recovery of your original microbiota, after taking antibiotics: https://www.cell.com/cell/fulltext/S0092-8674(18)31108-5 https://www.cell.com/cell/fulltext/S0092-8674(18)31108-5