What is Probiotic S. Thermophilus?

Streptococcus Thermophilus is a powerful probiotic strain that has well researched health benefits. This probiotic is often found in the colon and has many digestive, immunity & many other researched health benefits.

S. thermophilus is used for culturing cheese as well as yogurt. This probiotic strain also produces lactase, which helps people digest milk more efficiently. Lastly, probiotic Streptococcus thermophilus also produces antibiotic chemicals to prevent infection from infections like pneumonia, C. difficile and can help prevent ulcers.

Researched Benefits of S. thermophilus:

  • improve digestion
    • reduce antibiotic associated diarrhea
    • decrease ulcerative colitis symptoms
    • decrease leaky gut symptoms
    • improve lactose digestion
    • decrease IBS symptoms
    • decrease acute diarrhea
  • enhance immunity
    • prevent & fight upper respiratory infections (eg. pneumonia)
    • prevent ulcers caused by H. pylori
    • decrease AIDS symptoms
    • fight Clostridium difficile
    • increase immunity
  • additional health benefits
    • improve non-breast-fed infant probiotic flora
    • reduce symptoms of atopic dermatitis
    • prevent bacterial vaginosis infections
    • decrease chance of kidney stones
    • increase HDL (good cholesterol)
    • increase anti-tumor activity
    • decrease baby colic

Side Effects of S. Thermophilus

Like every probiotic, S. Thermophilus has a list of relatively minor side effects.


Corrêa NB, Péret Filho LA, Penna FJ, Lima FM, Nicoli JR. A randomized formula controlled trial of Bifidobacterium lactis and Streptococcus thermophilus for prevention of antibiotic-associated diarrhea in infants. J Clin Gastroenterol. 2005 May-Jun;39(5):385-9.

Di Marzio L, Centi C, Cinque B, Masci S, Giuliani M, Arcieri A, Zicari L, De Simone C, Cifone MG. Effect of the lactic acid bacterium Streptococcus thermophilus on stratum corneum ceramide levels and signs and symptoms of atopic dermatitis patients. Exp Dermatol. 2003 Oct;12(5):615-20.

Jain PK, McNaught CE, Anderson AD, MacFie J, Mitchell CJ. Influence of synbiotic containing Lactobacillus acidophilus La5, Bifidobacterium lactis Bb 12, Streptococcus thermophilus, Lactobacillus bulgaricus and oligofructose on gut barrier function and sepsis in critically ill patients: a randomised controlled trial. Clin Nutr. 2004 Aug;23(4):467-75.

Mater DD, Bretigny L, Firmesse O, Flores MJ, Mogenet A, Bresson JL, Corthier G. Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus survive gastrointestinal transit of healthy volunteers consuming yogurt. FEMS Microbiol Lett. 2005 Sep 15;250(2):185-7.

Nopchinda S, Varavithya W, Phuapradit P, Sangchai R, Suthutvoravut U, Chantraruksa V, Haschke F. Effect of bifidobacterium Bb12 with or without Streptococcus thermophilus supplemented formula on nutritional status. J Med Assoc Thai. 2002 Nov;85 Suppl 4:S1225-31.

Saavedra JM, Bauman NA, Oung I, Perman JA, Yolken RH. Feeding of Bifidobacterium bifidum and Streptococcus thermophilus to infants in hospital for prevention of diarrhoea and shedding of rotavirus. Lancet. 1994 Oct 15;344(8929):1046-9.

Thibault H, Aubert-Jacquin C, Goulet O. Effects of long-term consumption of a fermented infant formula (with Bifidobacterium breve c50 and Streptococcus thermophilus 065) on acute diarrhea in healthy infants. J Pediatr Gastroenterol Nutr. 2004 Aug;39(2):147-52.

Looking for a 5 Star Probiotic That Has S thermophilus?

Synbiotic 365 has large amounts of S thermophilus, and is rated a 5 star probiotic by Probiotics.org

Click here to read Synbiotic 365 review

Review Rating:

You should click here to read the full review of Synbiotic 365

4 comments on “S. thermophilus Probiotics Benefits & Side Effects” - Click here to write your comment

  1. alexandra maartens says:

    look there isn’t any side effects on the research.is it because there aren’t any side effects on them or because you haven’t found some or are you too lazy to post it in.

    I’m so sorry I didn’t check it nicely. but I love everything you did on this page I absolutely love it god bless you.

  2. Julia Woodman says:

    i would like to know if it is safe for people with very little immune system as I know some strains are not, could make one sick rather than help so much

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