I always encourage them to exercise and diet as that is the most healthy and practical solution for me . Discipline of course is the most important tool . If you do n't have this , you will never be successful in your goal , whatever that may be , but in their case it 's losing weight . Unfortunately they ' ve tried exercise and diet , but it seems not to be effective to them , so now they are interested on finding the best diet pills .

Question: Why are some people interested in these pills ?
Answer: To help them acquire more discipline .None of the above choices .To help them get thinner .To help them exercise better .