Lactobacillus casei is a well-studied probiotic species naturally found in the human digestive tract and commonly present in fermented dairy products like yogurt and certain cheese varieties. Research suggests that L. casei may support digestive health by helping maintain a balanced gut microbiome, and studies indicate it has shown promise in managing various types of diarrhea, including antibiotic-associated and infectious forms. Additionally, preliminary research has explored its potential role in supporting immune function, modulating allergic responses, and contributing to healthier cholesterol levels, though findings vary across studies. Available in both fermented foods and probiotic capsule supplements, L. casei is among the more extensively researched Lactobacillus species, with a generally favorable safety profile noted in the scientific literature.
Compare this supplementResearch suggests that Lactobacillus casei may support immune function through several mechanisms, including stimulat...
View studies →Research suggests that Lactobacillus casei, as part of a multi-strain probiotic formulation, is generally safe and we...
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 | cholesterol management | Based on RCTs examining lipid profile improvements with L. casei supplementation |
| Capsule | 99,999,999.99 CFU | Daily | general digestive health and immune function | Common range across multiple RCTs for probiotic supplementation |
| Liquid | 99,999,999.99 CFU | Daily | allergy relief and immune modulation | Dose used in trials investigating L. casei Shirota for allergic rhinitis and atopy |
| Liquid | 99,999,999.99 CFU | Daily | diarrhea management and gut microbiota support | Dose used in clinical trials studying antibiotic-associated and infectious diarrhea |
| Powder | 99,999,999.99 CFU | Daily | immune function support | Common in clinical trials evaluating immunoglobulin and cytokine responses |