So What is the Problem Now?
This leaves me with some concerns. That BF% number is too low to be healthy (15 Negative Effects of Having a Low Body-fat Percentage).
A Razor Thin Margin of Fat
Being on a Low Carb diet I am fat fueled. And now I’ve only got a small amount of body fat available to fuel me. At 31 calories per pound of fat per day and 12.3 lbs of fat, I’ve only got 381 calories a day available to be used as fuel. And some of that 12.3 lbs is essential fat.
Even if more fat gets mobilized (such as in vigorous exercise) than the limit above, I’ve now got less fat stores to dig into. 12.3 lbs times 3500 calories per lb is 43,050 calories. That is much less than when I had 120 lbs more of body fat two years ago (that was 420,000 calories).
See Part 3 for what this means in terms of fasting.