Carbohydrates and proteins have to be balanced in our diet. Excess consumption of either one is not recommended, but they are both essential. Breakdown of protein is more difficult and complicated than breakdown of carbohydrates or fat. As such, it requires the most amount of energy. The more protein we consume, the more energy we need for digestion. For this reason, it is not recommended to eat different kinds of proteins during a single meal. It is enough work for the body already to process one type of protein. Here are the most important sources of protein : - Meats: poultry, beef, veal, lamb, wild game; - Meat products:...