Calories in calories out theory.
The underlying assumption is that when we reduce calories in, we assume calories out stays stable, therefore we lose weight.
We have known this for over 100 years this is not true here’s why:
When you eat 2000 calories a day and you burn 2000 calories a day, then you reduce to 1500 calories a day, you assume that your body is still burning 2000 calories a day this is incorrect – -> your body adapts to what you’re taking in and changes the energy expenditure by the same amount.
So you’re taking in 1500, burning 1500 and may lose a few pounds at first, but then you have a weight plateau. The body drops the burning a little lower thinking there may be a survival issue, so you actually begin to gain. It’s not because you fell off your ‘diet’, it’s the bodies natural response – -> it doesn’t want to die, right?!
If the body reacted the way we *think* (ok, wish), you’d lose a pound a day and it would use up muscle and we would be emaciated and die.
Raise your hand if you’ve tortured yourself with this concept?
I am a Weight Watchers reject, circa 1994