Lactobacillus casei is a species of the genus Lactobacillus found in the human urinary tract and mouth. This particular species of Lactobacillus are documented to have a wide pH and temperature range and complements the growth of Lactobacillus acidophilus, a producer of the enzyme amylase (a carbohydrate-digesting enzyme).
Lactobacillus casei is naturally found in the gut. Some fermented foods contain L. casei, too. These include some yogurts, yogurt-like fermented milk, and certain cheeses. Dietary supplements containing
Lactobacillus casei and other probiotics can be found in health food stores or wherever dietary supplements are sold. When shopping for probiotics, it pays to read labels carefully. Follow directions for storage and take expiration dates seriously. Studies regarding dosage are lacking. There are no definitive guidelines. Read product labels carefully and ask your physician or pharmacist how much you should take.