Lactobacillus ruminis is a species of lactic acid bacteria (LAB) that belongs to the genus Lactobacillus. LAB are a diverse group of bacteria that are commonly found in various environments, including the human digestive tract, where they play important roles in fermentation processes and can have health benefits. Different strains of Lactobacillus ruminis may have varying characteristics and functions. While some strains may have probiotic potential, others may have specific roles in fermentation processes in the rumen or the human gut.