What type of weight loss will an individual experience by restricting calories but not increasing his or her level of physical activity?

The individual will lose mostly lean body tissue.

Explanation:

Restricting calories in the diet in order to lose weight but without increasing the level of physical activity is not a good idea. The individual who does this will mainly lose lean body tissue their body will not lose fat, on the contrary it will accumulate even more fat.

To lose excess fat that will result in weight loss, we must eat more balanced and stop low-calorie diets. The diet should be high in fiber, with regular times and intervals between short meals, always accompanied by physical exercise.

tell their parents and make sure she gets from a counselor or therapist. be supportive and be there for her. be a kind and good friend. spend time with her to make her feel like she's not alone. i'm not a professional but i really hope they stays strong.