To check if your egg is fresh, place it in a bowl of salted water, if it sinks to the bottom, it is fresh! On the other hand, if it floats, it is not recommended to use it! Shake it gently near your ear: if you hear its contents moving, it is a bad sign. A fresh egg does not make any noise when shaken.
What are its nutritional benefits?
Contrary to what one might believe, the egg is not a complete food. It lacks carbohydrates, fiber and vitamin C. However, it serves as a reference protein. It is also low in calories but the yolk is high in cholesterol.