There are various methods that you can use to determine calorie levels
Here is a really simple method
to lose weight
8-12 cals per day
There are various forumlas you can use as well as numerous tables and methods of indirect calorimetry, but the simple method used above should work
I have yet to find anyone that did not lose weight when eating 8kcals per lb/day. I worked in a Prader Willi faciltiy for 2 years and all of the clients lost weight when consuming 8-10 cals per day. Prader Willi patients have everything working against them as far as weight loss goes so if works for them it should work for basically everyone.
thanks
Coach Hale
www.maxcondition.com