Probiotics and prebiotics

Probiotics are foods or supplements that contain microorganisms, whereas prebiotics are foods or supplements that contain compounds designed to promote gut bacteria.

In most instances, we still don’t know which probiotics are helpful and which are not. We also don’t know how much of the probiotic people would have to take or who would be most likely to benefit. Even for the conditions that have been studied the most, researchers are still working toward finding the answers to these questions.