They should eat less, and workout. Eating processed food it terrible, eating more food would do no good, and just because more vitamins were added to a food doesn’t mean that it makes it better. Usually enriched foods are the most processed.
You can set up a game and have some of the kids play with her, you could ask a few kids to play with her, or the best way would be to talk to Rachel and find out why she dont want to play with the others.<span />