Superior Digestive Support for Everyday Health

Probiotic Advantage® (30 caplets, 30-day supply) | Digestive Relief Vitamins & Supplements

Item# PAS
1 Bottle
Buy 3, Get 1 FREE
Was: $99.96
Now: $74.97
Buy 5, Get 2 FREE
Was: $174.93
Now: $124.95
Buy 6, Get 3 FREE
Was: $224.91
Now: $149.94

Everyday digestive relief that's easy to swallow

2 billion live probiotics in 7 beneficial strains

Probiotic Advantage® is like a multivitamin for your digestive system. Nurturing the delicate balance of beneficial bacteria in your digestive tract is absolutely critical for optimal health—critical, in fact, for life at all. Everyone should be taking Probiotic Advantage, even if you don’t have digestion issues. It’s cheap daily insurance!


Probiotic Advantage®:

  • Ends constipation and occasional diarrhea
  • Relieves flatulence and painful gas
  • Promotes better nutrient absorption
  • Supports your immune system
  • Improves the breakdown of undigested foods
  • Gives you the freedom to eat the foods you love

I’m happy to announce that by rigorously working with the manufacturer, we’ve been able to shrink those pea-sized probiotic caplets down by a full 20%, making them even easier to swallow.

Probiotic Advantage still delivers 2 billion live bacteria in the seven most researched strains to every inch of your digestive tract. The patented BIO-tract® delivery system slowly releases the probiotics for guaranteed all-day relief. And special LiveBac® technology keeps the bacteria alive so they safely get to your intestines where they are needed to eliminate gas, bloating, and constipation.

Many probiotic supplements contain just one or two strains of bacteria—giving you only partial coverage. But each Probiotic Advantage caplet gives you seven extremely hardy, live probiotic strains, all backed by clinical research to ensure complete coverage.

  1. L. fermentum: kills toxins made during digestion to stop gas and bloating before they start.
  2. L. acidophilus: helps form colonies of good bacteria to keep unwanted organisms out of your gut and supports proper immune function. Plus, it helps reduce occasional diarrhea and supports vaginal health.
  3. B. longum: plays a critical role in breaking down carbohydrates, fights free radicals, and may reduce the symptoms that come with seasonal irritants.
  4. B. bifidum: helps with the digestion of dairy products.
  5. L. rhamnosus: helps improve vaginal and urinary health and reduces occurrences of traveler’s diarrhea.
  6. L. plantarum: produces hydrogen peroxide, which fights bad bacteria to protect your body.
  7. L. salivarius: has been shown to promote immune health and function.

Plus, I’ve added prebiotics to Probiotic Advantage to help feed and strengthen these good bacteria. The prebiotics “supercharge” the probiotics, so the good bacteria crowd out the bad bacteria. The specific type of prebiotics in Probiotic Advantage feed only the good bacteria—unlike ordinary prebiotics that feed both good and bad bacteria in your gut.

Probiotics have always been a part of my core recommendations. I can’t emphasize enough how important they are to your overall good health. And you’ll feel the difference in your digestion. Your elimination will be as regular as clockwork. Excess gas will disappear. And you won’t get bloated after meals

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.

Ingredients and Dosage

Doctor’s Suggested Use: Take 1-2 caplets daily with water prior to any meal. Do not chew or crush.

Serving Size: 1 Caplet
Servings Per Container: 30

Ingredient Amount Per Serving % DV
Probiotic Blend
  L. fermentum, L. plantarum, L. acidophilus, L.rhamnosus, L. salivarius, B. bifidum, B. longum
2 billion CFU *
Fructooligosaccharide (FOS) 25 mg *
*Daily Value (DV) not established.

Other ingredients: Microcrystalline cellulose, hydroxypropyl methylcellulose, pectin, sodium carbonate, stearic acid, guar gum, turmeric (color)
Contains trace amounts of milk protein from the manufacturing process. Suitable for individuals following lactose-restricted and lactose-free diets.

No refrigeration necessary. Store with cap tightly closed in a cool, dry place.

Note: Pregnant or lactating women should consult a health care professional before taking this product.
Keep out of reach of children.

With BIO-tract®, a patented technology and registered trademark of Nutraceutix, Inc.

This product contains natural ingredients; color variations may occur.


Displaying 21-30 of 93


Reviewed on
5.0 out of 5 stars

Of all the probiotic supplements I've tried (and I've tried many) these are the only ones to be really effective with constipation. They are somewhat costly, but I guess you get what you pay for as the saying goes.


Reviewed on
5.0 out of 5 stars

great product


Reviewed on
1.0 out of 5 stars

This product did nothing for my gi problems.Took for 3 months,still had constipation,gas, and bloating.


Reviewed on
5.0 out of 5 stars

Have been using Dr. Williams Probiotic Advantage for a few years and can tell when I travel and forget to take them with me!!!!!


Reviewed on
5.0 out of 5 stars

Has helped me tremendously. Thank you dr. Williams


Reviewed on
5.0 out of 5 stars

Has helped me tremendously. Thank you dr. Williams


Reviewed on
5.0 out of 5 stars

The probiotic works great for keeping you regular. In fact, I have tried about 10 different brands and I would say this works the best. I believe its the encapsulation technology that makes the difference.


Reviewed on
5.0 out of 5 stars

I finally don't have a gurgling stomach and my bowl movements are reg. and once a day now


Reviewed on
3.0 out of 5 stars

I liked the 1 billion better. These are a little too strong for me and my husband. We can only take them every 3 day.


Reviewed on
2.0 out of 5 stars

it caused more gas than I had before

Science and Quality

Consumer Lab Approval - ProbioticsProbiotic Advantage has been certified as “Approved Quality” by To read the results of the test, click here.
  • Individuals with milk sensitivities are able to tolerate dairy that includes probiotics better than dairy that lacks probiotics.1
  • It is believed that L. fermentum produces compounds and proteins that help inhibit the growth and adhesion of pathogens.2
  • Research found that supplementation with L. plantarum supports immune function in healthy adults.3
  • In a double-blind, placebo-controlled study, patients taking L. acidophilus experienced significantly more relief from their gastrointestinal discomfort than did those taking placebo.4
  • Supplementation with probiotics including L. acidophilus and B. bifidum help modulate the response of the intestinal microflora to the effects of antibiotics.5
  • A meta-analysis of double-blind human trials found that probiotic strains, including L. acidophilus, help to alleviate occasional diarrhea.6

1 Alm L. J Dairy Sci 1982;65(3):346–52.
2 Varma P, et al. J Food Sci 2010;75(9):M546–51.
3 Hirose Y, et al. J Nutr 2006;136(12):3069–73.
4 Faber SM. Am J Gastroenterol 2000;95:2533.
5 Madden JA, et al. Int Immunopharmacol 2005;5(6):1091–97.
6 Gaon D, et al. Medicina (B Aires) 2002;62(2):159–63.

Product Quality

  • Manufactured to exacting standards using highest quality raw materials
  • Produced under our own SOPs that meet or exceed FDA GMPs
  • Every batch tested to verify purity and potency specifications are met
  • Quality assured with our Triple Testing Philosophy™
  • Backed by our 100% satisfaction guarantee