Anyone who has ever been on any kind of diet or fat loss program knows how a typical diet progresses. The weight comes off fast and easy during the first few weeks of any diet, then it starts to slow down a bit. After a few more weeks go by fat loss slows down a little more or stops altogether. The reason this happens is because the body senses that body fat levels are dropping and food is in short supply.
The prevailing formula for a long time on how much fat you’re going to burn was calories in minus calories out, based on your basal metabolic rate (BMR) and exercise efforts, explains strength and performance specialist Joel Seedman, Ph.D., owner of Advanced Human Performance in Atlanta. But with all the different biochemical reactions in the body, hormonal response, and endocrine function, there are an infinite number of factors that can affect how your body is storing and breaking down calories.