Without any info i can give you some guidelines. 100 carbs is the lowest i would think you would need to go. DO that for 3-5 days and then 1 day much higher, around 350-450. This will keep your thyroid working in your favor, keep some muscle on you etc etc. When do this keep your
protein high 1-2 grams per lb of MUSCLE not total bodyweight, no need in feeding fat, just what burns calories.. muscle, LBM. Breakfast and post workout should be your biggest carb meals... the others smaller. No carbs last meal b4 bed so GH can be maximized when sleeping. Hope that gives you some ideas. I would also start out with a base diet(same cal, carb etc for 4 weeks so you can find your BMR and your body can adapt to it. THen you hit rotating carbs and your body will burn fat most effectively opposed to the survival instict of your body kicking in and "holding" on to fat.