I am at a loss trying to understand how Richard’s calculator works. I just don’t get it.

I am speaking about how in the description, Richard says that his friend is 135 lbs, her lean body mass is 110 – so she has around 25 lbs of body fat. Which means from body fat she can only draw **878.5 kCal/day** of energy.

My stats are similar to hers at 141lbs total weight, lean body mass at 111, so why do I not require any additional fat with such a small change in stats.

Can someone please explain this to me? I think the residual carbs I ate over the weekend are leaving me with brain fog, I am just not getting it

Does this mean I do not need to eat additional fat to fast without damaging my metabolism? *blinks a few times…*