Diets like Atkins are not healthy,
and typically result in all of the weight (
and then some) being gained back when the
diet is discontinued. It is not a change that can be maintained for life. For permanent, healthy weight loss, you'll need to make modifications that are sustainable. This means portion control, the eat less + sweat more equation, and not depriving yourself of things severely, which invariably leads to binges and nutritional imbalances.