Probiotics are live microorganisms, mostly bacteria and some yeasts, and digestive health supplements also include the fibers and enzymes used to support everyday digestion.† This department covers probiotics, prebiotics, digestive enzymes, fiber supplements such as psyllium, and apple cider vinegar capsules and gummies.
What to look for on the label
Probiotic labels should name each strain in full: genus, species and strain code, for example Lacticaseibacillus rhamnosus GG. The count is given in CFUs (colony forming units); look for the number stated through the expiration date, not only at the time of manufacture. A higher CFU count doesn't automatically mean a better product. Fiber labels list grams per serving.
Good to know
Some probiotics must be refrigerated, so follow the storage directions. People with a weakened immune system, or who are critically ill, should talk to their doctor before using probiotics. Fiber supplements can change how some medications are absorbed, so ask your pharmacist about timing and drink plenty of water. Related: Greens & Superfoods, Immune Support and Herbs & Botanicals, and our Nutrition Guides.
Frequently asked questions
Do probiotics need to be refrigerated?
Some do, and others are made to be shelf-stable. The label tells you; heat and moisture shorten the life of any probiotic.
What's the difference between probiotics and prebiotics?
Probiotics are live microorganisms. Prebiotics are fibers, such as inulin, that feed the bacteria already living in your gut.
Can I get probiotics from food?
Yes. Yogurt and kefir labeled with live and active cultures, and fermented foods such as unpasteurized sauerkraut, kimchi and miso, can contain live microorganisms.
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