L. rhamnosus

L. rhamnosus

General Facts

  • Lactobacillus rhamnosus was considered as a subspecies of L. casei.
  • Most commonly found in female vagina and urinary tract along with L. reuteri
  • L. rhamnosus GG (ATCC 53103) strain is one of the world's most studied probiotic bacterium
  • Shown effect on peanut allergy


Our recommendations are based on the following rules:
  1. Exact strain number is shown in the supplement facts
  2. Product of the single strain or one of the strains of a few others
  3. Best customer reviews with high number of reviewers 
  4. Popular brand and low cost

L. rhamnosus GG

Also known as LGG for short and the most popular strain of L. rhamnosus, it is a well studied stain.
It works for cold for children (1), dental caries (2), diarrhea (3), and atopic dermatitis (4).
LGG  is also known good for babies. Try this product for your babies.
probioitics for your baby
If you want to get other benefits, try probiotics with mixed strains. 
Although L. plantarum L-137 and L. plantarum CNRZ1997 (5) were confirmed to fight cold and flu in animal model.
They didn't specified the strain of L. plantarum used in this product.
Therefore, there is a chance that this product is good for cold and flu. It is not guranteed, though. 
probiotics to fight cold and flu

L. rhamnosus GR-1

It is known that L. rhamnosus GR-1 is good for Urinary Tract Infections / BV with L. reuteri RC-14 (6, 7).
Please check our review about Probiotic Feminine Supplement.probiotics for urinary tract infections

L. rhamnosus CGMCC 1.3724

Effect on peanut allergy (8). More than 80 % of children who received the protein and probiotic were able to tolerate peanuts without any allergic symptoms at the end of the trial. 
Twenty-three of the 28 children who received the probiotic with the peanut protein were able to eat peanuts after the study.
Good for weight loss (9). It was working for women, though.
Clinical trials are supplied by Nestlé but not available in USA yet.


  1. Hatakka, Katja, et al. "Effect of long term consumption of probiotic milk on infections in children attending day care centres: double blind, randomised trial." Bmj 322.7298 (2001): 1327.
  2. Näse, Leena, et al. "Effect of long–term consumption of a probiotic bacterium, Lactobacillus rhamnosus GG, in milk on dental caries and caries risk in children." Caries research 35.6 (2001): 412-420.
  3. Aggarwal, Sunny, et al. "Lactobacillus GG for treatment of acute childhood diarrhoea: An open labelled, randomized controlled trial." The Indian journal of medical research 139.3 (2014): 379.
  4. Isolauri, E., et al. "Probiotics in the management of atopic eczema." Clinical & Experimental Allergy 30.11 (2000): 1605-1610.
  5. Kechaou, Noura, et al. "Identification of one novel candidate probiotic Lactobacillus plantarum strain active against influenza virus infection in mice by a large-scale screening." Applied and environmental microbiology 79.5 (2013): 1491-1499.
  6. Falagas, Matthew E., et al. "Probiotics for prevention of recurrent urinary tract infections in women." Drugs 66.9 (2006): 1253-1261.
  7. Mastromarino, Paola, Beatrice Vitali, and Luciana Mosca. "Bacterial vaginosis: a review on clinical trials with probiotics." New Microbiol 36.3 (2013): 229-38.
  8. Tang, Mimi LK, et al. "Administration of a probiotic with peanut oral immunotherapy: a randomized trial." Journal of Allergy and Clinical Immunology 135.3 (2015): 737-744.
  9. Sanchez, Marina, et al. "Effect of Lactobacillus rhamnosus CGMCC1. 3724 supplementation on weight loss and maintenance in obese men and women."British Journal of Nutrition 111.08 (2014): 1507-1519.