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Make sure you're choosing the best probiotic supplements approved in our tests!

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Probiotic supplements and oral health products compared in this review

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Align Probiotic

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Align Probiotic Women's Dual Action

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Allergy Research Group Essential-Biotic Women's

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BioGaia Probiotic Lozenges - Mint Flavored

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CulturedCare Probiotic Gum With Avec Blis K12 - Organic Spearmint-Peppermint Flavour

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Culturelle Probiotics Digestive Health

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Dr. Ohhira's Probiotics

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Florajen Kids

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Florastor

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Garden of Life Dr. Formulated Probiotics Once Daily Women's

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Garden of Life RAW Probiotics Women 50 & Wiser

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Gerber Good Start Sooth Birth+

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GNC Probiotic Complex

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Healthy Biom

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Healthy Origins Probiotic 30 Billion CFUs

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Jarrow Formulas Jarro-Dophilus EPS

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Jarrow Formulas Probiotic Duo - Raspberry Flavor

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Member's Mark 10 Strain Probiotic

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Metagenics UltraFlora Balance

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Microbiome Labs Mega Sporebiotic

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Nature's Bounty Probiotic 10

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Nutramax Proviabe-DC

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RepHresh Pro-B

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Schiff Digestive Advantage

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Seed DS-01 Daily Synbiotic

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Spring Valley Women's Probiotic

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Swanson Dr. Stephen Langer's Ultimate 16 Strain Probiotic With FOS

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Vet's Best Probiotic Soft Chews

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Visbiome High Potency Probiotic

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Visbiome Vet

Summary

  • What are probiotics?

    Probiotics are viable (living or hibernating) bacteria and/or yeasts that confer a health benefit. Probiotics are sold as capsules, tablets, powders, chewing gums, gummies, and lozenges, as well as cultured foods and beverages, such as yogurts and kefirs
  • What are the health benefits of probiotics?

    Certain probiotic strains may have gastrointestinal benefits, including reducing the risk of diarrhea associated with antibiotics and helping with constipation, bloating, diarrhea and irritable bowel syndrome, and preventing colic in infants. Others may be helpful for gum disease, allergies, slightly lowering blood pressure and cholesterol (LDL and apoB) levels, and other uses (see What They Do.)
  • What's the right dose of a probiotic?

    Typically, a probiotic should provide at least 1 billion cells daily — although, as discussed in the "What They Do" section, some probiotics have been shown to work at a lower dose (100 to 500 million cells), such as those for children or used to treat conditions in the mouth. Be aware that there can be huge variation in the number of viable cells (called colony-forming units or CFUs) from product to product. Among products tested, this ranged from just 100 million to hundreds of billion!
  • What did ConsumerLab find testing probiotics?

    Most products were found to contain their listed amounts of probiotics, if not more, and were not contaminated with pathogenic organisms. However, one product contained hardly any viable organisms, despite listing many probiotic strains (see What CL Found.)
  • What are the best probiotic supplements?

    Among products that were Approved for their quality in our tests, we selected Top Picks for some of the most common uses of probiotics for people, and for dogs and cats, based on containing the types and amounts of probiotic organisms that have evidence of being effective.
  • What are prebiotics and postbiotics?

    Prebiotic ingredients are sometimes added to probiotic supplements although in amounts that are typically smaller than used clinically. Prebiotics provide soluble fiber that promotes the growth of probiotic bacteria and may be beneficial for irritable bowel syndrome, constipation, blood sugar control, lowering cholesterol, and other conditions (see our Prebiotic Supplements Review). Postbiotics are also sometimes added to probiotics. Postbiotics include heat-killed probiotics as well as the byproducts of fermentation, such as butyrate, carried out by probiotic organisms. These may be beneficial for diarrhea, Crohn's disease, irritable bowel syndrome, weight loss, and preventing common colds (see All About Postbiotics). Probiotics that include prebiotics or postbiotics have, together, have been referred to a synbiotics.
  • Are probiotics safe?

    Probiotics may temporarily increase digestive gas. If you have a milk allergy, be aware that trace amounts of milk proteins may occur in some probiotics. Probiotics may not be safe prior to abdominal surgery and should be used with caution in people who are severely ill, immunocompromised, or have feeding tubes or central lines. For more details see Concerns & Cautions.
You must be a member to get the full test results along with ConsumerLab.com recommendations and quality ratings. You will get results for 30 probiotic supplements, including three products for pets. Nineteen products were selected by ConsumerLab.com and 11 others are included for having passed testing in its voluntary Quality Certification Program.


  • Which probiotic supplements and drinks failed our tests and which ones passed
  • CL's Top Picks among probiotic supplements by category, including probiotic supplements for treating constipation and diarrhea, reducing gas, preventing C. difficile infection, treating H. pylori infection, preventing vaginal infection, and reducing cold symptoms
  • Which probiotic bacteria or yeasts have been shown effective for treating or preventing specific conditions, and at what dose. These microorganisms include Lactobacillus acidophilus, Lactobacillus GG, Bifidobacterium infantis, Saccharomyces boulardii, and many others
  • Price comparisons of probiotics supplements
  • Ingredient comparisons and what to look out for on probiotic labels
  • What prebiotics (often included in probiotics) can and cannot do, and how to get them from supplements and foods
  • Tips on how to use probiotics — and store them to last longer  
  • Concerns, cautions, and potential side effects of probiotics -- including concerns for people with milk allergies

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