Most people are creatures of habit and like to stay in their comfort zone. That is to say they will buy from the same stores, make their favorite recipes times and over again and just live within their familiar routines. But, if somewhere along the line, you do get serious about eating better and adopting a healthier lifestyle, you will need to stir things up.
Often different diets will suggest combining foods in combinations to get the most nutritional value out of your meal. The principle behind this is not only to provide you with all the necessary nutrients in one meal but also to make sure that foods are efficiently digested so that your digestive system does not have to work in overdrive for proper assimilation of nutrients.