There are some surgical alternatives, but they are only for very specific cases. Losing weight by eating less and exercising more is the best alternative.
EXERCISE!
Do not avoid exercise when dieting, as exercise is beneficial to your dieting plans by helping you lose weight. Do not overexert yourself, however, as that is detrimental to your health.
I think that exercise is the best and dieting is second best. If you do both (diet and exercise) that would be most beneficial in your weight loss plan.
You need to use more calories than you take in. So, you could lose weight through exercise only if you were using more than you ate.
A proper weight loss program should include both dieting and exercise. To lose weight effectively you need to both reduce your calorie intake as well as burn more calories. If for some medical reason you are unable to exercise, then begin by dieting.
If you really want to lose weight in 3 weeks without dieting, you need to go on vacation with some friends. You will be having such a great time that you'll forget to eat, and you'll exercise without even realizing it (splashing in a pool, walking on a beach, horseback riding, etc).
The way to lose weight without a yoyo effect is to change your lifestyle. Long term dieting won't work, but changing how you eat, what you eat, and how much you exercise will keep the weight off. Programs such as Weight-Watchers are very good at helping you learn how to eat properly and how much exercise is enough. They cost a little money, but you really can lose weight and keep it off by learning to change your habits over time.
life style change
Not at all it helps if you diet to a certain weight and maintain it for a while it should be hard to get over that weight. I think dietng helps you lose weight in the future. I dieted and lose weight without dieting.
A dieting person loses weight.
Of course! But it would help if you threw a little physical activity (aka exercise) in there. ;)
Dieting by itself will not produce a flatter stomach in the sense that most people take that. You can lose weight through dieting, but to get a flatter stomach you need to also exercise your abdominal muscle groups.