Mozzarella Cheese Mozzarella is a traditionally southern Italian cheese made from Italian buffalo’s milk by the pasta filata method. Fresh mozzarella is generally white but when seasoned it turns to a light yellow depending on the animal’s diet. It is usually made from buffalo or cow’s milk. Mozzarella is relatively low in fat and calories. This makes it a healthier cheese option compared to others. Mozzarella contains probiotics such as the bacteria Lactobacillus casei and Lactobacillus fermentum.