Probiotics used incorrectly can have mixed results; and thus, there will be endless religious debates on the matter. If the reason you are taking them is to cu

Probiotics used incorrectly can have mixed results; and thus, there will be endless religious debates on the matter. If the reason you are taking them is to cull dangerous bacteria such as H.pylori, you would first have to bring their numbers down to a point where the probiotics have a fighting chance. This is typically either done with anti-biotics, or a combination of supplements such as aged garlic, mastic gum, coconut oil, etc... to first kill things off. Then after taking the probiotics, the candida overgrowth has to be purged with garlic extract. Very few people will take the time to go through the right steps throughout the days/weeks required to balance things out. This lends itself to a wide variability in results.