Fasted cardio is extremely beneficial for optimizing insulin sensitivity and lowering blood glucose, and I personally feel it accelerates fat loss when hgh is in the mix as well (since hgh stimulates lipolysis—mobilizing and burning free fatty acids for fuel) then the fasted cardio and energy expenditure increases the usage of free fatty acids.
There’s a reason a lot of top level bodybuilding coaches split the day between a “fat burning phase” and a “growth phase”, and have their athletes doing fasted cardio with fat burners, gh, injectable l carnitine etc, then in the growth part of the day they carb load
And yes I’m aware of the “calories in vs calories out” scenario that constantly gets parroted and it’s true that calorie consumption vs calorie expenditure ultimately determines how the scale moves, but I also think people use this as an excuse to eat pizza and chicken wings and high saturated foods because “if it fits your macros”. I wonder why we don’t see top olympians prepping on pizza and chicken wings…?
I’m a big believer in fasted cardio, eating Whole Foods, minimizing saturated fat and fried foods, and keeping sugar intake low to moderate, with most of it coming from sources that provide micronutrients (like fruit). Call it bro science or whatever but it works.