Streptococcus thermophilus is one of the most widely consumed probiotic species in the world, used extensively as a starter culture in yogurt and cheese production. Research suggests it may support digestive comfort by producing the enzyme lactase, which helps break down lactose — making dairy products more tolerable for individuals with lactose sensitivity. Studies indicate that S. thermophilus, often in combination with other probiotic strains, may help reduce the duration and severity of certain types of diarrhea, particularly antibiotic-associated and acute childhood diarrhea. Emerging research also points to potential benefits for gut barrier integrity and modest immune system modulation, though more large-scale human trials are needed to fully understand its independent effects outside of traditional fermented food matrices.
Compare this supplementResearch suggests that the evidence linking Streptococcus thermophilus specifically to immune function benefits in hu...
View studies →Research suggests that Streptococcus thermophilus may play a modest role in gut health, though the evidence is largel...
View studies →Research suggests that Streptococcus thermophilus, particularly when present in yogurt alongside Lactobacillus delbru...
View studies →Research suggests that Streptococcus thermophilus has been studied in the context of gut microbiome health, though th...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 99,999,999.99 CFU | Twice daily | diarrhea management including antibiotic-associated diarrhea | Common in clinical trials using multi-strain or single-strain probiotic interventions |
| Capsule | 99,999,999.99 CFU | Daily | gut health and general digestive support | Common in clinical trials using probiotic formulations |
| Capsule | 99,999,999.99 CFU | Daily | immune function support | Based on RCTs assessing immunomodulatory effects of S. thermophilus in healthy adults |
| Powder | 99,999,999.99 CFU | Daily | lactose intolerance symptom relief | Based on RCTs evaluating yogurt-associated S. thermophilus for lactose digestion |