Probiotics and prebiotics, explained
Probiotics are live microorganisms, mostly bacteria, that you swallow on purpose. Prebiotics are fibers that feed the helpful bacteria already living in your gut.
Probiotics
Common probiotic groups are Lactobacillus and Bifidobacterium. Effects depend on the specific strain, so research on one strain doesn't automatically apply to another.
Prebiotics
Prebiotics are fibers your body doesn't digest. They pass through to your large intestine, where gut bacteria use them as food. Fructooligosaccharides (FOS), soluble corn fiber and oat fiber are examples you'll see on labels.
Reading a probiotic label
- CFU (colony-forming units) is the number of live organisms per serving, usually in billions.
- Strains tells you how many different organisms are in the blend.
- Storage instructions matter, because the organisms are alive.
Who should check first
Probiotics are generally considered safe for healthy people. Anyone with a weakened immune system, a serious illness, or who is critically ill should talk to their doctor before taking them. Some people notice gas or bloating for the first few days.
In our shop: what's in a serving
- Flora Probiotic + Prebiotic: Per 2 capsules: 32 billion CFU from 14 vegan strains, 500mg NutraFlora® FOS prebiotic and a 100mg DigeSEB™ enzyme blend.
- Greens Complete: Per stick: 4g dietary fiber from soluble corn fiber and oat fiber, plus a greens blend and vitamins.
Quick answers
What's the difference between a probiotic and a prebiotic?
Probiotics are live bacteria. Prebiotics are fibers that feed bacteria. Flora has both in the same capsule.
When should I take Flora?
The label says 2 capsules with a glass of water right before breakfast or your largest meal.
Is a higher CFU always better?
Not necessarily. Effects depend on the strain more than the raw count.
Sources
- NIH Office of Dietary Supplements. Probiotics (consumer fact sheet).
- NIH National Center for Complementary and Integrative Health. Probiotics: Usefulness and Safety.
Keep reading
This guide is general information, not medical advice. These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. Talk to your doctor before starting a supplement, especially if you are pregnant, nursing, take medication or have a medical condition.