People generally divide body types into three divisions, to come up with diet plans that are sure to suit the members of the particular body types. There are three types, called ectomorphs, endomorphs and mesomorphs. Once you zero in on your body type, you can take up a diet that'll suit your body type and an exercise regimen that will work wonders for you. Ectomorphs have thin shoulders, chest, and arms and legs and they have very less body fat. Mesomorphs have broad heads, wide shoulders and good potential for body building. Endomorphs have a lot of body fat and wide hips, narrow shoulders. They gain weight easily.