Ectomorph
This body type looks long and lean. Ectomorphs have small bone structure and comparatively fast metabolism. Their lithe looks are owed to slow weight gain and muscle development as well as low body fat. Because ectomorphs have such a high metabolism they may be able to get away with less cardio. More weight training may help with muscle development as this is a challenge for most ectomorphs. Ectomorphs should go for more carbs with moderate proteins and low fat in their diet.
Endomorph
This body type is round with high body fat. Endomorphs have a larger bone structure and a comparatively slow metabolism. They tend to gain weight easily and do not tolerate high carbs well. Because endomorphs have a slower metabolism, cardio is key for managing weight. Weight training is essential for muscle development and metabolism efficiency. Endomorphs should go for more healthy fats, moderate proteins and low carbs in their diet.
Mesomorph
This body type has medium bone structure and an athletic build. Mesomorphs, when active, easily build lean muscle mass. This type typically has lower body fat and a comparatively easy time both gaining and losing weight or bulking up. Cardio is a good way to go if weight loss is the goal. Mesomorphs should go for a balanced diet of carbs, fats and proteins.