I did atkins and lost alot of weight in one summer when paired with cardio exercise. Though it works, imho it is a very bad diet. The problem I had is that it worked so well, I didnt want to gradually add carbs again to the diet because I was so happy with the results; this was a bad idea. When I started adding them, I added too much and starting gaining weight again = bad. I was also missing alot of nutrients by taking out carbs, and did not have the same energy drive. You also don't want to do weightlifting on this diet.
I would advise you to not follow a diet like atkins. Do some research on foods, and modify your eating habits. You should have a good amount of fats, carbs, and proteins in your diet. If youre lifting weights, you could do a keto diet, just google for more info.