The side effects of diet pills are mainly manifested in that some diet pills will inhibit fat absorption, easily lead to diarrhea, lack of fat-soluble vitamins, lead to electrolyte disorder in the body, and lead to excessive weakness. Diet pills that suppress appetite can easily cause some cardiovascular diseases and pancreatitis, and some diet pills related to nerves can easily lead to insomnia. Try not to use diet pills to lose weight, or take a healthy way to lose weight, that is, control diet and strengthen exercise.