its very hard and bad to loose weight fast, I think you are a nice weight. and not fat. just do what you normally do go to the gym and eat well. 66 kilos is not a lot and if you think it is change it to stones u will feel a lot better, that = 10 stone. which is about right for girls. take care ted
Try the South Beach Diet and keep going to the gym. Good luck.
U could try Curves.
OK hello It not healthy to lose weight quickly just as it not OK to gain weight easily why would you want to lose weight anyways I think you just right for your age all you have to do is maintain your weight and watch wat you eat
Run! Its hard work, but if you can run for 30-45 minutes on a regular basis you will see results.
If you have blood type O then you must eliminate bread, potatoes and corn for the duration of the diet. If you are blood type A or B then a sensible vegetarian diet with little or no meat, poultry or fish would be better. Drink at least 8 glasses of water daily and fresh fruit for snacks. A trick is to not eat or drink anything except water after 6pm. That is an amazing way to take the weight off easily but most people can t do it when watching t.v. in the evening. Sugar is another enemy of the dieter. Go easy on the refined carbs.