I previously discussed why it’s so hard to stay lean and now I’m back with a further investigation into why it’s so hard for us to keep our weight loss off.
Does our ability to burn calories change when we lose weight?
How does our body respond to caloric restriction and and fat loss? In animals, restricting food and losing weight caused a decrease in resting energy expenditure but there is an increase in spontaneous activity.
The act of losing weight alone decrease how many calories that we can burn,makes sense right? Have less weight to move and you won’t burn as much. What we’re concerned with is if the calories we burn is directly related to the weight we lose.
If we burn more calories then the weight we lose that’s a problem. All it means is that our body is getting used to the weight loss and is trying to perserve energy (calories). We’ve now become more efficient in weight loss and that isn’t a good thing. We burn less calories in all of the other daily functions that go along with our resting expenditure and when we’re active, we either do less work or burn less.
Whatever way you slice it, that ain’t good.
What about adaptive thermogenesis?
Research in humans have shown that we can burn more calories despite what our scale tells us. Other studies have also failed to confirm that adaptive thermogenesis actually exists. The studies depend on the subject being weight stable, they are used to eating X calories per day and eat X calories every day. That doesn’t happen in the real world.
Leibel, a very well respected metabolism researcher performed a study on individuals who had lost weight and kept at least 10% of it off for a year.
The subjects who lost more weight had slightly lower resting metabolic rate then those who didn’t lose weight even though they currently weighed about the same. The difference? About 72-140 calories per day. There active energy expenditure was higher, around 366-383 calories per day.
To simplify these findings, we can state that adaptive thermogenesis actually exists in long term weight loss conditions. What does that mean?
We might be able to reset our body fat set point, that is the bodyfat % and body weight that our body strives to stay at. If our body wants us to be 200 pounds and we just lost weight and got down to 190 pounds, our body will change various processes to “force” us to regain that weight.
Can we reset our body fat set point? How do we go about doing it? Give me 20 comments below and I’ll give you the answer tomorrow.
Want the EXACT blueprint for keeping ALL your weight off? Check out my special presentation “Stay Lean:Strategies and Tricks For Keeping It Off Forever”
Tags: Adaptive Thermogenesis, Animals, Burn Calories, Caloric Restriction, Calories Per Day, Energy Calories, How Many Calories, Losing Weight, Metabolism, Real World, Researcher, Resting Energy Expenditure, Resting Metabolic Rate, Spontaneous Activity, Stable, Weight Loss