Lactobacillus acidophilus is a type of bacteria found in your intestines. It’s a member of the Lactobacillus genus of bacteria, and it plays an important role in human health. Its name gives an indication of what it produces — lactic acid. It does this by producing an enzyme called lactase. Lactase breaks down lactose, a sugar found in milk, into lactic acid.
Lactobacillus acidophilus is also sometimes referred to as L. acidophilus or simply acidophilus. Lactobacilli, particularly L. acidophilus, are often used as probiotics. Unfortunately, food manufacturers have overused the word “probiotic,” applying it to bacteria that haven’t been scientifically proven to have any specific health benefits.
L. acidophilus has been extensively studied as a probiotic, and evidence has shown that it may provide a number of health benefits. However, there are many different strains of L. acidophilus, and they can each have different effects on your body. In addition to probiotic supplements, L. acidophilus can be found naturally in a number of fermented foods, including sauerkraut, miso and tempeh. Also, it’s added to other foods like cheese and yogurt as a probiotic.