Teenagers should avoid the Omnitrition diet, a 500-calorie-per-day diet supplemented with human chorionic gonadotropin or hCG. The U.S. Food and Drug Administration states that low-calorie diets such as the Omnitrition diet are unhealthy for people of all ages.
The hCG diet restricts participants to a maximum of 500 calories per day. Very low calorie diets are inappropriate for teenagers except in limited circumstances under close medical supervision, WebMD states. Active teenagers are unlikely to get adequate amounts of vitamins, minerals or protein in a 500-calorie diet, according to the FDA. More gradual weight loss programs are more effective for keeping weight off than more extreme diets, says the Centers for Disease Control and Prevention.
Selling hCG products for weight loss is illegal, according to the FDA. HCG does not cause weight loss or fat redistribution. Any weight loss consumers experience on the hCG diet is due to the caloric restrictions of the diet.