What are probiotics? Probiotics are viable (living or hibernating) bacteria and/or yeasts that confer a health benefit. Probiotics are sold as cultured foods and beverages, such as yogurts and kefirs, as well as in capsules, tablets, and powders.

What are the health benefits of probiotics? Certain probiotic strains may be helpful for constipation, bloating, diarrhea and irritable bowel syndrome, while others may be helpful for throat and respiratory infections, and other uses.

What are the best probiotic supplements? We suggest that you check our Results table to find identify products “Approved” for quality in our testing. Then consider the following:

Choose a product that contains the type(s) and amounts of probiotic organism(s) shown to work for your condition. See the “What They Do” section and then check the Results table for products that contain that/those organism(s).
See our Top Picks for some of the most common uses of probiotics.
Be aware that there can be huge variation in the number of viable cells (CFUs) from product to product. Among products tested, this ranged from just 100 million to hundreds of billion! Typically, an adult 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.

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365 by Whole Foods Market, Daily Probiotic 5 Billion CFU, 60 Count

Our Daily Probiotic formula combines 4 types of beneficial bacteria, including L. acidophilus, B. lactis, B. bifidum and S. thermophilus,

Acidophilus Probiotic by Nature’s Bounty, Dietary Supplement, For Digestive Health, Twin Pack, 200 Tablets

) Nature’s Bounty Acidophilus is a friendly bacteria for the digestive system that supports overall well-being. Our Probiotic Acidophilus contains

Align Daily Probiotic Supplement Capsules, 84 Count

Align is the product of over 10 years of scientific research, and was developed by gastroenterologists (doctors who specialize in the digestive system). It contains the pure-strain probiotic Bifidobacterium infantis 35624, which is a unique strain that works to deliver a good bacteria in your digestive system, and which is offered by no other probiotic brand.
Is Discontinued By Manufacturer‏:‎No
Package Dimensions‏:‎7.87 x 6.3 x 2.24 inches; 3.2 Ounces
Date First Available‏:‎June 6, 2015

Align Digestive Care Probiotic Supplement, 84 Count

This product is not eligible for priority shipping. Image may vary from the actual product. Is Discontinued By Manufacturer‏:‎No Product

Align Probiotic Extra Strength, #1 Doctor Recommended Brand, 5X more good bacteria to Help support a healthy digestive system, 42 Capsules

"Good bacteria are essential for many bodily functions, including healthy digestion. However, common issues such as diet, travel and stress can disrupt the natural balance of bacteria in your digestive system. Align is a daily probiotic supplement that fortifies your gut with good bacteria to help you maintain digestive balance.* Align contains the probiotic strain Bifidobacterium 35624 and is the #1 doctor and gastroenterologist recommended probiotic brand.‡ *THESE STATEMENTS HAVE NOT BEEN EVALUATED BY THE FOOD AND DRUG ADMINISTRATION. THIS PRODUCT IS NOT INTENDED TO DIAGNOSE, TREAT, CURE, OR PREVENT ANY DISEASE. ‡Among Doctors who recommended a brand of probiotic in a ProVoice 2019 survey. ‡Among Gastroenterologists who recommended a brand of probiotic in a ProVoice 2008-2019 survey."
Product Dimensions‏:‎2.3 x 3.7 x 5.5 inches; 0.32 Ounces
Date First Available‏:‎November 16, 2018
Manufacturer‏:‎Procter & Gamble - HABA Hub
Country of Origin‏:‎USA
Domestic Shipping:Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.International Shipping:This item can be shipped to select countries outside of the U.S. Learn More

EFFECTIVE PROBIOTIC STRAIN. Align contains the probiotic strain Bifidobacterium 35624, which works naturally to supplement your digestive system with good bacteria
TRY ALIGN EXTRA STRENGTH. Just one capsule of Align Extra Strength contains 5X more good bacteria, with 5 times the active cultures CFUs vs. Align capsules; Align Probiotics are gluten free, soy-free, vegetarian, & no refrigeration is required
#1 GASTROENTEROLOGIST RECOMMENDED PROBIOTIC BRAND for 10 years in a row; Align Probiotic is recommended more often by Gastroenterologists and Doctors than any other probiotics brand
100% SATISFACTION GUARANTEED, OR YOUR MONEY BACK; Align Probiotic Supplement is heat-foil seal wrapped to ensure survivability, and each lot is DNA tested to ensure effective levels of Bifidobacterium 35624

Best Naturals Probiotic 10 Strains & 30 Billion CFU Intestinal Flora, 120 Veggie Capsules – Shelf Stable probiotic (4146365)

Best Naturals probiotic 30 billion CFU’s offers a balanced spectrum of live organisms consisting of acid-resistant probiotic bacterial strains that

Bio-Botanical Research Proflora 4R Probiotic 30 Capsules

Proflora4R from Bio-Botanical Research features a restorative probiotic combination to replace beneficial flora

Culturelle Health & Wellness | Daily Probiotic Supplement | Immune Support | With the proven effective Probiotic | 15 Billion CFU | 50 Vegetarian Capsules

Culturelle Probiotics Products Is Discontinued By Manufacturer‏:‎No Product Dimensions‏:‎1.63 x 3.66 x 5.5 inches; 1.76 Ounces Item model number‏:‎049100400433 Date

Culturelle Kids Chewable Daily Probiotic for Kids – Natural Berry – Supports Immune, Digestive, and Oral Health – For Age 3+ – Gluten,Dairy,Soy-Free – 30 count

Culturelle Probiotics Products Is Discontinued By Manufacturer‏:‎No Product Dimensions‏:‎3.66 x 1.25 x 5.5 inches; 0.64 Ounces Manufacturer recommended age‏:‎3 years

Culturelle Women’s Healthy Balance Probiotic for Women | 30 Count | with Probiotic Strains to Support Digestive, Immune and Vaginal Health* | with The Proven Effective Probiotic | Packaging May Vary

Culturelle Probiotics Products Is Discontinued By Manufacturer‏:‎No Product Dimensions‏:‎2.88 x 3.63 x 5 inches; 2.08 Ounces Item model number‏:‎049100400594 Date

Digestive Advantage Daily Probiotic Capsules (80 Count In A Box), Helps Relieve Minor Abdominal Discomfort and Occasional Bloating, Supports Digestive and Immune Health, CFUs

Digestive Advantage Daily Probiotic targets your specific digestive health needs and with continued use, gives you long-term digestive support*. It

Douglas Laboratories Multi-Probiotic 40 Billion | Provides Probiotics and Prebiotics to Support Gut Microflora and Immunity* | 60 Vegetarian Acid-Resistant Capsules

Multi-Probiotic contains 16 potent probiotic strains, including the clinically researched Bifidobacterium lactis HN019 that supports gastrointestinal and immune function.* Also

Dr. Tobias Deep Immune Probiotics & Prebiotics, 4.4 Billion CFU, Supports Healthy Gut, 60 Capsules, (2 Daily)

Caution: may cause constipation or discomfort. For sensitive individuals, Probiotics & prebiotics may temporarily cause bloating, gas, stomach pain or

Dr. Tobias Probiotics 30 Billion, 10 Probiotic Strains, Targeted Release 30 Capsules, Non-GMO (1 Daily)

Caution: Do not exceed recommended dose. Pregnant or nursing mothers, children under 18, and individual with a known medical condition

EndoMune Advanced Adult Multi-Strain Probiotic Supplement with Prebiotic | 10 Strains, 30 Billion CFU | Physician Formulated | 60 Vegetarian Capsules

EndoMune Advanced contains no wheat, eggs, yeast, sugar, corn, soy or artificial flavors or preservatives. EndoMune is free of dairy

Florastor Daily Probiotic Supplement for Men & Women, 250 mg, 100 Capsules

#1 PROBIOTIC WORLDWIDE, STUDIED AND TRUSTED FOR OVER 50 YEARS Is Discontinued By Manufacturer‏:‎No Product Dimensions‏:‎8 x 6 x 4