That video you linked is focusing more on "health" than "weight loss", which should be considered different. If there's somewhere in that 1:40:00 long video that he says calorie counting doesn't work, please time-stamp it.
Counting calories itself is an exercise in accounting. How would it help with weight loss?
try out my earlier comment "Try Calculating your TDEE (at sedentary) and eating 500 calories (accurately) below it for 12 weeks and come back, you'll weigh 12lbs less. I don't think that's a red herring."
Get back to me in 12 weeks.
The thing is it's not possible if the metabolism is broken.
It's a bit like saying "If I double my velocity every hour, will I reach 1000000mph?" Yes and no.
The human metabolism is a dynamic system with feedback. You can't sustainably eat 500kcal below TDEE for long periods of time because the body will turn down your TDEE to the minimum. For me that's around 800-1,000kcal/day. I've stayed weight stable for 2 months straight eating around 1,000kcal/day. I've also LOST weight eating over 4,000kcal/day (very different phase of my life, obviously).
CI and CO are not unrelated and you can't change one and expect the other to stay fixed.
Re:The Efficient Frontier of Fat Loss
by 5636553454654 on Monday March 27, 2023 @01:37AM
(#35323215)
Out of date. Watch this instead: https://www.youtube.com/watch?v=zumrAR5qHX0
Is a Calorie a Calorie? Processed Food, Experiment Gone Wrong
Presented by Stanford Health Care
https://www.youtube.com/watch?v=nxyxcTZccsE