I think the difference with low carb eating (and only eating when hungry, vs bored, thirsty, stressed, tired, etc.) is that if you’re in fat burning mode you don’t feel the switch from using the food you just ate to burning your own body fat for energy.

I went thru a couple of days of “low carb flu” which felt like “hangry on steroids” and that was it. I no longer get that hangry feeling; my body is burning fat for energy by default. If one is doing low calorie (and carbs make up most of those calories), then the switch is going to be felt frequently.

This is just my n=1 non-scientific observation combined with a bit of science I’ve absorbed. YMMV

Live we’ll.