Postbiotics are similar to probiotics. They are made of whole and partial microorganisms that offer health benefits. But unlike probiotics, they are not alive.
The term "postbiotics" is somewhat controversial. Generally, a postbiotic must be "inactivated" or killed, and it must be clear how this was done. Also, the postbiotic must provide health benefits. Lactobacillus rhamnosus and Bifidobacterium bifidum that are no longer alive would be considered postbiotics.
People use postbiotics for stomach conditions, allergies, diabetes, high blood pressure, and many other conditions, but the definition of "postbiotics" is still unclear, so there is no good scientific evidence to support most of these uses.
Postbiotics as a group aren't regulated by the FDA. Don't confuse postbiotics with probiotics. These are not the same.
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