I'm in the 1st part of phase 4 on the NutriMost diet. I've lost 20 lbs and I need to maintain within 2 lbs for 21 days. This is tougher then the program itself. I'm trying to work in 1631 calories a day! That's a lot! Especially going from 40 days of 500-550 calories. I'm pretty confident this will reset my metabolism but…