Just want to loss weight

I am trying to search some information on how to keep fit. Many articles are available online actually. Some is advice to do more exercise; some is advice on balance diet; some even have many reviews for the best diet pills. I think lose weight has become a very popular activities for woman. Look at those articles already know that how many people need them. Well, of course this is good as I could get that information and test it on. I just want to have a slim body shape. I hope it is not greedy. :p