Fatigue at the beginning of #TheStubbornFatFix plan.

You may experience some fatigue during the first few days of the diet, as your body switches from a carbohydrate metabolism to a fat metabolism. Most of the people we work with report amazing levels of energy after a week or two of following the food plan. In fact, one man told us he felt so energetic within a week of starting the diet that he was running full speed uphill- for the fun of it.