I’m concerned that I have no interest in food.

I’m on my 3rd week at 2.5. I'm a little concerned that I have no interest in food at all. It's amazing that the constant food cravings and dopamine-driven eating habits have disappeared, but they've been replaced by a complete lack of interest and enjoyment in food. I really don't think about food much, except for the fact that I know I'm not eating enough. I try to eat as much as I can, but I know the calories I'm consuming aren't sufficient. What have you all done about this? Is this normal?