Whey butter may be made from whey cream. Whey protein is the collection of globular proteins isolated from whey. Whey syneresis is the loss of moisture by the expulsion of whey. Regular margarine contains trace amounts of animal products such as whey or dairy casein extracts. Proteins come mostly in the form of fast digesting whey protein. That effect is somewhat overcome by combining casein and whey. The daily beverages included milk, whey, buttermilk and various herb infusions. The primary usage of whey protein supplements is for muscle growth and development. By-products of milk include butterfat, cream, curds, and whey. Lactose can also be isolated by dilution of whey with ethanol. The protein fraction in whey constitutes approximately 10% of the total dry solids in whey. Brocciu is made from whey and milk. Mysost are a family of cheese-related foods made with whey and milk and/or cream. It can be made from whey or a blend of milk and whey.