If fat is stores of energy, then why aren’t fat people more energetic than skinny people?
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Probably because A) they’re likely eating shitty food that makes them feel lethargic and B) because they have a lot more body weight to drag around, which can be taxing on their energy levels.
Also large amounts of body fat alter one’s hormonal profile that leads to a cascade of devastating effects. Increases in cortisol. Decreases in testosterone with a subsequent increase in estrogen. Why do you think viagra is so popular now a days. This also goes both ways. A lack of sufficient body fat also alters your hormonal profile. Very athletic women who have little to no body fat will cease to have normal periods and can even become infertile. Fat is a living organ and therfore has huge impacts on one’s overall health.
The same reason a bus with 10x the horsepower and 50x the gas (energy) is slower (less energetic) than a motorcycle. Most of the extra energy and power is used moving the extra mass.
Being fat is like driving the same car but with a 2000 gal fuel tank on a trailer. The car’s engine doesn’t become more performant just because you drag a lot of fuel around. But the car becomes much slower because all that extra fuel is so heavy.
Yes, the problem is fat people dont access the fat stores because they just continue over eating or eating bullshit to supply the body with energy.
This is how intermittent fasting is so successful. You FORCE your body to get the nutrients from you stores.
“Stored energy” vs “metabolised” is completely different.
There are many many factors.
Simple answer is go put a 50kg ruck on and eat 5000 calories worth of highly processed food and go for a run. No PB’s here right.
Also obese people generally don’t move around as much so in that respect aren’t used to moving/exercising. With all the extra weight the burden on the cardiovascular system is ridiculous as well as stress on joints etc etc.
So someone who is “normal” weight might run comfortably at a heart rate of 150bpm.
But for an obese person it might be 200bpm for the same pace etc etc.
Also technically they will have more energy in a starvation scenario than a normal sized human.
This is the point of a calorie deficit right. Say your daily calories are 2000. And you decided to eat 1000 then you body is going to fill the void from “fat” stores.
Also muscle is metabolically expensive for your body to maintain so it will no doubt pillage most of muscle first then fat. Again it’s not a easy to explain without grossly oversimplification of everything.
There are 2 sources of energy we get from food.
1. Carbs
2. Fat
If you eat both carbs and fat, your body will burn the carbs and keep the fat as storage. Think of it like this as an analogy:
A hybrid car uses both gas and electric battery.
When you drive, the battery is in use and the fuel (gas) is saved – stored
When your car stops or goes over a certain speed, it uses fuel and starts recharging the battery.
Now imagine, that the fuel is not really being burned as the battery charges- but as it charges your car also fuels up. Since car is using more electric battery power, the gas over flows.
This is similar to how our body works.
You eat carbs, and fat – body stores fat while carbs being burned and used as energy. Thus, the more fats you eat while eating carbs, the more it gets stored.
So, a KETO diet is where you use only fats and your body forces itself to burn the fat you acquired, since there are no carbs- additional energy sources, you lose weight quickly.
Is your car faster with a full tank of gas weighing it down or half a tank weighing it down less?
Fat people have many many times the potential energy than a fit person.
They just can’t access it as fast.
Long term stores. Put the fat guy and the skinny guy on an island with no food and then see who still has energy to keep going a few weeks in.
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