"1. You lose weight by eating less calories than your body uses. "
As a former chemistry student(I did not finish it, because I made engineering instead), I tell you you are oversimplificating how the body works.
With a machine you could talk about calories because the way an engine works is so simple. Fuel, oxidant+Energy init reaction->Output + Energy out.
Not so with the body. There are different processes the body uses to get energy, and it is very complex.
E.g When you eat sugary drinks you put immense amounts of sugar in the blood, very fast which are dangerous(if insulin is not released you die), so the priority of the body is getting this sugar out of the bloodstream, converting it to fat. At the same time your liver could not process anything else as the rate it has to work to get rid of the sugar is too high.
Countries like the US of America or Central Europe has an obesity epidemic problem, and what changed the most was food. 40 years ago Germans or Americans ate more than 8 kilos of butter and other natural fats per year. Now it is way less.
As a former chemistry student(I did not finish it, because I made engineering instead), I tell you you are oversimplificating how the body works.
With a machine you could talk about calories because the way an engine works is so simple. Fuel, oxidant+Energy init reaction->Output + Energy out.
Not so with the body. There are different processes the body uses to get energy, and it is very complex.
E.g When you eat sugary drinks you put immense amounts of sugar in the blood, very fast which are dangerous(if insulin is not released you die), so the priority of the body is getting this sugar out of the bloodstream, converting it to fat. At the same time your liver could not process anything else as the rate it has to work to get rid of the sugar is too high.
Countries like the US of America or Central Europe has an obesity epidemic problem, and what changed the most was food. 40 years ago Germans or Americans ate more than 8 kilos of butter and other natural fats per year. Now it is way less.