Body types explained
A lot of the results you see in the gym will boil down to a few determining factors. One of those factors is your body type, of which there are three general categories: ectomorphic, endomorphic, and mesomorphic. A large part of the way you go about your diet and exercise plan should be carried out with knowledge of your specific body type in mind.

The ectomorph is characterized by a smaller slender build with a propensity toward staying lean. (S)he has a difficult time holding onto muscle mass due to accelerated metabolism, which differs from her counterpart, the endomorph.
People with endomorphic body types generally have larger, softer builds, but have a difficult time keeping off fat and water weight. They have to pay great attention to their diets because poor food choices(especially poor "carbohydrates" choices) may cause them to blow up, if they aren't careful!
Then we come to the most enviable of all body types, the mesomorph. The mesomorph has well-defined muscles, large bones and a heavy square jaw. He has a very strong appearance with a broad muscular upper-body with a narrow v-tapered waist line.
Most of the time, people cannot be distinctively classified as one of the three main body types. While there are some ectomorphs or mesomorphs, most people falls into mixed categories
such as ecto-mesomorphs or endo-mesomorph which would mean they are most likely the mesomorph but with traits of the ectomorph (small joints or a trim waist) or the endomorph (a tendency to put on bodyfat).
The next issue lies in how to properly exercise and eat for your specific body type. People with ectomorphic body types won't need to do as much cardiovasular exercise, but will have to focus more on heavy weight training to maintain lean body mass. They will also want to take in higher calories to sustain their size, as their high metabolism may surely lead to catabolism (muscle wasting) if they aren't careful. On the other hand, endomorphs will have to up that cardio and really pay attention to their diets in order to keep unwanted bodyfat.
Endomorphs are also particularly susceptible to gaining fat and water from excessive amounts of carbohhhydrates, which will give them a smooth and puffy look. Mesomorphs are pretty lucky, in that they will keep their great shape unless they really go overboard and eat excessive amounts of calories everday without exercising. So to get the best results in the gym, eat and train for your specific body type, and minimize the waisted time spent training or eating incorrectly.
Eating for Your Body Type
Ectomorph- breakfast: Two egg omelet and a quarter cup each chopped mushrooms, bell peppers and shredded mozzarella cheese.
Two slices turkey bacon, one half whole wheat bagel with one teaspoon margarine made with canola oil.
Snack: one quarter cup raisin and almonds.
Lunch:one cup of your favorite soup, with a small
salad.
Dinner: 4oz. Salmon with one teaspoon honey and soy sauce, half cup brown rice, Six asparagus spears brush with olive oil
Dessert: 1 cup vanilla ice cream.
Endomorph- breakfast: 1packed instant oatmeal, 1 medium banana, half cup orange juice.
Snack: 6 wheat crackers, 1 mozzarella cheese stick.
Lunch: roast beef sandwich on wheat,light mayo, lettuce, reduced fat cheese. five baby carrots, half cup grapes.
Dinner: 4oz.chicken breast, 1 cup green beans, 1 whole wheat roll.
Dessert: 1 cup ice cream
Mesomorph-brealfast: 1 scrambled egg, with a quarter cup spinach and 2 tablespoons mozarella cheese. 1oz. lean ham, 1 slice whole wheat toast with half a teaspoon margarine.
Snack: 1 small apple with 1 tablespoon peanut butter
Lunch: Tuna sandwich on wheat, half apple
Dinner: 3oz. steak, small baked potato, cup steam carrots.
Dessert: 1 cup ice cream