Lactobacillus casei Shirota is a type of beneficial bacteria, specifically a strain of Lactobacillus casei. It is commonly found in fermented foods and is known for its probiotic properties, which can help support gut health. This strain is often used in yogurt and other dairy products to promote digestive balance and enhance the immune system. Research suggests that Lactobacillus casei Shirota may aid in reducing gastrointestinal issues, such as diarrhea and constipation. It can also contribute to the overall health of the microbiome, which is essential for maintaining a healthy digestive system and overall well-being.