Muscles, organs, skin, hair as well as antibodies, enzymes, and hormones are all made from protein. Protein is composed of 23 different amino acids. Nine amino acids cannot be made by the body. These nine are known as essential amino acids and must come from food. High Quality Protein Eggs contain all nine essential amino acids making them an excellent source of high quality protein.
Scientists frequently use eggs as a standard for measuring the protein quality of other foods.
Protein quality is expressed as biological value which measures the rate of efficiency that protein is used for growth. Eggs are an affordable protein source and can be stored in the refrigerator for up to three weeks without affecting their quality. According to Canada's Food Guide to Healthy Eating , one to two eggs provides a serving from the Meat and Alternatives Food Group. Cholesterol Cholesterol is a natural, waxy, fat-like substance. It has many uses, including insulating nerve fibres, maintaining cell walls as well as producing vitamin D, digestive juices and certain hormones.