The junk food is out the window. This diet has been great for them. In fact, those trying to gain weight must really take in serious amounts of calories. Regardless of the hype of severe carbohydrate reduction or elimination in popular diets, carbs are essential. Let me tell you why.
Carbohydrates are necessary for the function of the brain and nervous system.
When you are exercising muscles, they are an essential fuel. We store carbohydrates as glycogen, which is our body's fuel. If the level of glycogen falls dramatically, your exercise or sports performance goes into a tailspin. Heavy exercisers should consume carbohydrate amounts near the top of the range. Simple carbs are basically sugars and complex carbs comprise breads, cereals, rice and pasta.