Diet soda may contain aspartame, which according to some studies might cause cancer with long-term use. Also, many of these diet drinks contain caffeine, which may curb your appetite temporarily, but may lead to overeating later on in the day. Sodas also contain phosphorus, too much of which can leech calcium from your bones, weakening them. Also, understand that with sodas you may bloat easily since they often cause indigestion.
