“Consuming more calories than you burn makes you fat. It’s the amount of calories that matters, not the source of those calories.”
That is the dominant theory, but their are plenty of scientist who disagree with it.
The alternate theory is that fat accumulation is controlled by hormones. They have done many studies where they deliberately overfed volunteers, some people gained weight while other did not.
Certainly the way we consume carbohydrates (amount and concentration) is not natural. Where is the Pizza tree or the doughnut bush in nature
The pizza would be the cow in the wheat field, and the doughnuts would be the sugar cane and beets growing on the border of the same wheat field.
:-)
Just takes a little harvestin' skinnin' and cookin' (after milkin first!)
There are plenty of scientists who want us to believe that we can eat as much food as we'd like and not gain weight -- as long as it's the food they recommend. And for just $29.95 they will gladly share with you what those foods are. Operators are standing by. Fools and their money are soon parted.
Metabolisms vary greatly. Even so, If you consume less energy than you burn, you will lose weight. You cannot gain weight eating 1,500 calories a day while burning 2,000 calories a day. The source of the calories does not matter. Burn more energy than you consume and you will lose weight. That is, unless you've managed to repeal the 1st law of thermodynamics.