I started with about 400, staying close to that regularely. My dietition suggested that my metabolism had slowed to accomadate the lower caloric intake and thought based on my desired weight I should be aiming for 1800 a day with more balanced catgories, 35% carb, 35% protein and the rest fat calories. While that seems to be working for me to help increase my metabolism, it may or may not be something for you. I'm 6 foot tall and trying to go from the 220's to 195.