I agree with this but would like to add that the body will burn fat AND muscle for energy in some unknown ratio that probably varies by person. If you workout/lift weights and eat higher levels of protein than the standard American diet, then that shifts the ratio more towards burning fat and sparing muscle. You definitely cannot out-exercise a bad diet, but you’ll never get a desirable physique with diet alone.Sure, technically.
But the difference is so miniscule its immaterial.
Consider this.
3,500 calories is the accepted value for a LB of fat.
Want to lose a LB - create a 3,500 calorie deficit. Gain a lb, consume a 3500 calorie surplus.
You are someone who works out and talks a lot about fitness, you know how difficult it is to gain a pound of pure muscle.
But a pound of muscle burns 6 calories per day at rest. A pound of fat burns 2 calories per day at rest.
So a recomp of replacing 1 lb of fat with 1 lb of muscle is a net 4 extra calorie per day burn.
Lets say you get crazy and add a full 20lbs of muscle and lose 20lbs of fat. (again - you know the challenge of adding 20lbs of lean muscle...for those who may not - without anabolics 20lbs of lean tissue gain is difficult)
But that dramatic 20lb conversion would net 80 calories per day of extra burn. orrrrr 80*365 or 29,200 calories per year.
That's about 8lbs of extra fat burned per year.
For someone who needs to lose 50+lbs...you simply can not work it off. period. hard stop.
Fat people must hear this and understand it. They can not out work a bad diet.
Edited to add: I believe the body doesn’t like long periods of deficit calories. The max duration is likely dependent on body composition, but roughly 6+months of eating at a deficit is going to have a negative effect on anyone’s body’s ability to do things. Regardless of how much weight someone has to lose, they should take maintenance breaks to reset and recover those body systems.
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