Lactose is the natural sugar that contains in the regular milk. Cats need lactase, an enzyme produced by the stomach, to break down the lactose so the body can absorb it. However, some cats are lactose intolerant in nature (due to lactase deficiency in their body). Cats that are lactose intolerant may experience acute intestinal distress – like gas, diarrhea or vomiting when they consume dairy products containing lactose. With this in mind, we added a natural enzyme into our milk to remove the lactose so that cats (and kittens) can consume it without experiencing any gastrointestinal problem.