The issue with over restricting calorie intake with the goal to lose fat. ( Please note, a calorie deficit is necessary for fat loss,
Many people who decide they want to lose weight, immediately turn to calorie counting and reducing the energy intake, this normally works for quick weight loss goals, however, becomes a major issue when attempting to keep it off! When fat loss is the goal you should focus on speeding up the metabolism rather than decreasing your calorie intake which can lead to a slower metabolism.
Adaptive thermogenesis is the process of your body adapting to lower calories and as a result, burns fewer calories, at the opposite side your body will burn more calories when there is more to do so. It's just the
PS: We do talk about the importance of a calorie deficit as it is the best way to lose weight, however, we don't recommend you maintain as a lifestyle, it