Comment Re:Everything is more expensive now. (Score 1) 110
different configurations of bacteria extract different levels of energy from the same food?
Yes, different people have slightly different numbers for "calories in" for the same food
You do know that metabolic response can dramatically alter how the body conserves and expends energy, right?
Yes, different people have different metabolic burn rates
Nothing in what you said alters the laws of thermodynamics, and you should stop pretending it does. If you know your body's burn rate and your body's general caloric intake from the food you eat, you can 100% with absolute certainty use calories in/calories out to guarantee the direction of your weight gain/loss. I will literally never understand you people that latch onto very niche biological processes and use them to try to make insane claims about energy conservation. I'll tell you right now...ANY human that limits themselves to say ~1000 calories a day will lose weight. I don't care what your "gut biome" is or your genetics, or whatever. Just because people are slightly different doesn't make the physical laws of reality stop. Yes, it sucks that one person can eat an extra piece of cake than you and still lose weight easier. Maybe your body makes you feel hungrier than the next person with a smaller caloric deficit. Make you're dealing with insulin resistance that another person doesn't deal with. NONE of that means you're "doomed to be a fattie" because minor biological differences are "impossible to overcome". It's always a matter of willpower.