Digests Lactose, Dairy Proteins and Fats Maximum Dairy Digestion NOW Dairy Digest Complete is a comprehensive blend of enzymes that is formulated to aid in the digestion of dairy products. Intolerance to dairy is often due to the inability to digest milk sugar known as lactose. However, intolerance is also frequently related to the difficult-to-digest proteins and fats inherent in dairy products. NOW Dairy Digest Complete combines lactase for lactose digestion with proteases and lipases that specifically target milk proteins and fat for digestion.