Probiotic labels are full of numbers and Latin names. Here is how to read one, so you can compare products on facts instead of marketing.
What a probiotic is
The U.S. National Institutes of Health describes probiotics as live microorganisms, such as certain bacteria and yeasts, that can provide health benefits when taken in sufficient amounts. They are found in some fermented foods and sold as dietary supplements (NIH Office of Dietary Supplements).
1. CFU: the number on the front
CFU stands for colony-forming units, a count of the live microorganisms in a serving. Two things to know:
- More is not automatically better. The NIH notes that a higher CFU count alone does not mean a product has greater benefits.
- Check when the count applies. Live cultures decline over time, so better labels state the CFU count through the expiration date, not only at manufacture.
2. Strains: the names in the Supplement Facts
Every probiotic has a genus, a species and a strain, for example Lacticaseibacillus rhamnosus GG. Research results apply to specific strains, so two products with the same CFU can behave very differently. A good label lists each strain by name.
3. Other ingredients
Women's formulas often add a botanical such as cranberry. Look for the amount of each added ingredient on the Supplement Facts panel. A name on the front with no amount listed tells you very little.
4. Format: gummy, capsule or powder
The best format is the one you will actually take every day. Gummies are chewable and need no water; capsules usually hold more per serving. We compare them in Probiotic gummies vs. capsules.
5. Storage
Heat and humidity are hard on live cultures. Keep the pouch sealed, store it somewhere cool and dry, and follow any storage note on the label.
Quick label checklist
- CFU stated, ideally through the expiration date
- Every strain named
- Amounts listed for added ingredients
- A lot number and best-by date
- Made in an FDA-registered facility (registration is not FDA approval; the FDA does not approve dietary supplements)
Who should check with a doctor first
The NIH advises talking with a health care provider about which probiotic to take, how much and for how long. People who are seriously ill or have a weakened immune system should be especially careful.
Our Cranberry Women's Probiotic Gummies are cranberry-flavored and come 60 to a resealable pouch, with the CFU count printed on the front.
This article is general information, not medical advice. Talk to your doctor or pharmacist before starting a supplement, especially if you are pregnant, nursing, take medication or have a health condition. *These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.