Dr. Mercola Complete Probiotics

Dr. Mercola is a world-class probiotic-manufacturing brand. This company supplies high-quality supplements with authentic ingredients.

So is Dr.Mercola, Complete Probiotics, a product worth purchasing? Is it effective? Let’s find out!

Nature (4/5):

It is a probiotic supplement and contains ten probiotic strains which help facilitate normal functioning of the digestive tract. Additionally, Dr. Mercola Complete Probiotics also contains an constituent called ‘fructooligosaccharides’, which gives a sweet flavor to the supplement but does not increase caloric intake.

Price (4/5):

Dr. Mercola, Complete Probiotics, comes in a bottle containing 60 capsules and is available at a price of $29.97. So each capsule costs almost $ 0.49. The recommended dosage is two capsules per day and one bottle contains 30 servings.

Average rating (4/5):

This product has a 4.3 star rating on iHerb based on 144 reviews by customers out of which 62% are 5-star reviews, 19% are four-star reviews and 6% are one-star reviews.

On Amazon, this probiotic supplement holds a rating of 4.5 stars based on 319 reviews.

Side effects (4/5):

Most customers have expressed satisfaction with this product but some also experienced undesired adverse effects. The most commonly reported side effects include:

  • Some customer complaints included the report that the supplement did not seems to have any visible beneficial effect on their health.
  • The most common complaint is that many individuals experienced abdominal discomfort and pain when they started using this supplement.
  • Some customers also suffered from constipation and gastric disturbances.

CFU (3/5):

CFU is the abbreviation of “colony forming units”. Usually, the CFU range of commercially distributed products  is between 1 billion CFU up to 20 billion CFU. Dr. Mercola, Complete Probiotics, contains 70 billion CFU which exceeds the normal range. This unusually high CFU content on one hand makes this a powerful supplement but on the other hand makes this product unsuitable for people who have a sensitive gastrointestinal system.

Strains (5/5):

All of the 10 probiotic strains included in Dr. Mercola Complete Probiotics have been extensively studied, and been known to improve gastrointestinal health and boost immunity.

This diversity of probiotic strains ensures that more nutritional benefits can be gained by using one single product.

Strain Role of bacteria Research
1. Bifidobacterium bifidum  It improves digestive health, boosts immunity and combats diarrhea and infections. O’ Callaghan, van Sinderen, 2016.
2. Bifidobacterium lactis It facilitates all sort of digestive processes, boosts immune function, fights diarrhea and cancer. İ

şlek A, 2014.

3. Bifidobacterium longum Produces lactic acid, screens out harmful pathogens and improves immunity.  

O’ Callaghan, van Sinderen, 2016.

4. Lactobacillus acidophilus It protects the digestive system, helps with lactose intolerance, wards off infections and reduces IBS.  

Kailasapathy, Chin J. 2000.

5. Lactobacillus brevis Enhances gut motility and boosts immunity. M Linsalata – ‎2004
6. Lactobacillus casei Potent against diarrhea, pancreatic necrosis, colitis infections and gut inflammation.  

CM Galdeano, 2006.

7. Lactobacillus plantarum Regulates bowel movements and helps GIT to recover after antibiotic treatment



K Adlam. 2014.

8. Lactobacillus rhamnosus It reduces the duration of bouts of diarrhea and allergic reactions. It can even help cure skin infections and respiratory disorders.  

Szajewska H, 2015.

9. Lactobacillus salivarius Combats pathogens and alleviates symptoms caused by irritable bowel syndrome.  

Drago L, 2011.

10. Streptococcus thermophilus It helps with lactose intolerance, alleviates IBS and diarrhea symptoms, treats ulcerative colitis.  

Di Marzio L, 1999.

Overall rating (4/5):

Dr. Mercola, Complete Probiotics is a great product for individuals who wish to improve their digestive function and enhance immunity. It is beneficial against lactose intolerance, diarrhea, infections, colitis, IBS, etc. It does not contain any allergy-causing components and can be used by vegans as well.


  1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4908950/
  2. https://www.ncbi.nlm.nih.gov/pubmed/10651933
  3. https://probioticsamerica.com/dr-mercola-complete-probiotics-reviews/
  4. https://www.ncbi.nlm.nih.gov/pubmed/15068419
  5. https://www.ncbi.nlm.nih.gov/pubmed/16467329
  6. https://microbewiki.kenyon.edu/index.php/Lactobacillus_plantarum_and_its_biological_implications
  7. https://www.ncbi.nlm.nih.gov/pubmed/22230409