If they want to gain loose weight then they would need to eat well, so taking in a normal amount of calories but exercising more. To gain wait, take in more healthy calories but not that much of an extreme work out.. Hope this helps.
The correct relationship between calories and weight loss or gain is:
If a person wishes to lose weight, he/she should make a low-calorie food intake and if another person wishes to increase their weight they should have a high calorie intake.
Explanation:
Calories are the energy used by the body to perform different activities, however, <u>when the intake of calories exceeds the energy that the body needs, it accumulates as fat or muscle within the body increasing body weight</u>, this is denoted in fact that each <u>gram of protein contributes about 4 calories while each gram of protein contributes about 9 calories</u>, for this reason, people who prefer fatty foods are more likely to suffer from obesity, since the amount of calories they eat with each food is much greater, meanwhile, <u>people who want to reduce their weight regularly consume foods low in calories or lean, in order to provide their body with only the amount of energy it requires</u>.
The ability to lift a weight 12 times or more is not optimal for growing muscle mass. If you can't lift a weight eight or more times you are also not optimally building muscle mass. Generally speaking, the target goal for lifting weights to build muscle is anywhere between eight and 12 reps.
