They must be safe since anyone can buy them. These diet pills, or appetite supressors, do curb your appetite, but usually for just a few weeks. Many have side effects and some can be addicting, with potential damage to the heart and nervous system. Any diet pill or weight loss aid is not a substitute for adopting healthy eating habits over the long term. So, aerobic exercise is good enough.
Aerobic exercise is good for everyone, but so is weight training.
Weight training is very important for females and it will not cause them to gain the big muscular mass that men can gain by lifting weights. Weight training helps women lose body fat and build lean muscle. Lean muscle speeds up your metabolism so that you burn more calories through out the day. Your clothes will fit better because you will be losing inches. It will also strengthen your bones, which can help reduce your risks for osteoporosis later in life.