I too don't believe the Atkins diet is healthy. Just because you shift weight on it , it does not mean it is good for you. For example becoming anorexic shifts weight but it can also kill you.
Humans are supposed to eat carbohydrates. That's why we have long guts. I am currently on a diet and have lost a stone. In the past I have found it relatively easy to lose up to three stone by eating a diet rich in carbohydrates, low in fat and rich in fruit and vegetables.
Foods such as chocolates, biscuits, cakes and other high-fat, high-sugar foods i either leave alone altogether or eat very sparingly.