It is true that maintaining a low carb meal plan help increase your energy deficit by controlling the insulin in your body. Insulin is a hormone that controls and stimulate craving and hunger. A study shows that by lowering your insulin levels will help in burning of body fat.
However, there is also a negative impact on this. Having a low carb deficit meal plan will make your body have a shortfall. Meaning fewer calories will burn. So it is “good” to have a break from a low calorie diet by having a “cheat day”. And by having a “cheat day”, it can help by interrupting the slow down in your body and help maintain your hormone as well such as your thyroid.