Modern packet milk is in its most dangerous form. You can call it as white poison. For adults milk is in no way useful while it causes series of diseases including cancer. Packet milk what you get is 3 to 5 days old. If you get organic pasture fed fresh milk it is ok. Farm eggs are also loaded with lot of artificial chemicals. Go for organic eggs. Muscles shall build based on demand so if you exercise you can build even with ordinary food.