The Atkins diet is a low-carbohydrate diet, usually recommended for weight loss.
Proponents of this diet claim that you can lose weight eating as much protein and fat as you want, as long as you avoid foods high in carbs.
In the past 12 years, over 20 studies have shown that low-carb diets are effective for weight loss (without calorie counting), and can lead to various health improvements.
Source: www.authoritynutrition.com