Exercise and eat a healthy diet

u cant..its natural and ur slim

It is probably because they have a fast motabolism.

The cowboy was tall and lanky, so naturally they called him Slim.

There are many ways one can get a slim body naturally. One way is to limit the amount of fat one eats every day and eat lots of fruit, vegetables and complex carbohydrates such as whole grain bread. When dieting to attain a slim body, eating healthy foods and exercising regularly will help one achieve this goal naturally.