The Atkins diet focuses on drastically cutting back on carbohydrates to force your body into a fat burning mode, because when our bodies don’t have sugars entering they will start burning fat to use as fuel.
The main issue with the Atkins diet is the demonizing of a specific nutrient. Not all carbs are evil, wholegrains have a place in a healthy diet and cutting them out completely can leave you low on certain micronutrients such as calcium, magnesium, and also fiber.
If you’re goal is to lose weight fast, Atkins will work. The main problem with the diet is weight maintenance. As soon as you start re-introducing carbs, even healthy carbs, you will gain the weight back probably faster than you lost it. Because your body has been deprived of carbs and sugars, it will become programmed to store them whenever you re-introduce them again. This creates a very unhealthy cycle of yo-yo dieting.