Who or what are you arguing against? I never said any of that and you are just raging at nothing

Well yes of course, if you weigh 65kg and follow some main-gain program. It's possible to workout that way, but you will look like 90% of people who work out; normal. I'm talking of maximizing efficiency and strength here.

Yes, I was talking of more extreme cases, which I should've said from the get go.

We're talking of the same thing from such different point of views it feels like we're debating here. You speak of human digestion from factual medical standpoint and I speak of optimazing energy levels for working out.

It's true that fats and protein are sources of energy, but the process of protein and fats breaking down is so long you can't get this fast and easy energy needed for heavy lifting with them. Also sufficient amount of calories, healthy diet nutrient-wise and not feel like throwing up from practical point of view without carbs is pretty hard. I'm also considering what type of diet is easy to follow here because bulking and lifting requires so so much calories

Yes, so it's indirectly linked since you need energy and fuel to have succesfull and beneficial workouts.

For losing weight, sure makes sense, I have no idea. For seriously bulking up and getting stronger you have to time your meals and keep blood sugar up during workouts so you can lift more weights and feel energetic.

I wanted to know about blood sugar effect on muscle growth directly, not fitness tips. Blood sugar is indirectly essential thing for working out