Collagen is a type of protein. Fibrous in nature, it connects and supports other bodily tissues, such as skin, bone, tendons, muscles, and cartilage. It also supports the internal organs and is even present in teeth.
A hard-boiled egg has 78 calories; an omelet has 94 calories Weight watchers can have at least 1 egg a day Diabetics can have just egg whites or 2 whole eggs a week
One large hard-boiled egg contains 78 calories, reports the U.S. Department of Agriculture. Eating one hard-boiled egg provides 4 percent of your daily caloric needs based on a 2,000-calorie diet.