Any type of weight loss, to be healthy and sustainable, should be done gradually, especially if you're focusing on Fat Loss. Anything over 2 lbs a week, will all but guarantee you're losing muscle mass. We all know how hard it is to ADD muscle, so any change in diet that endangers gains, should be undertaken with great care. Assuming a max of 2 lbs/week loss, that translates to a 1000 calories reduction a day. I recommend 750/day. Time is your friend. As you lose you will plateau, requiring a further reduction in calories. Use a BMR calculater to keep re-establishing your daily caloric intake. You can find one
HERE. Once you reach your goal, your caloric intake will have to remain very close to this same amount, or you will start packing on fat. We are talking about life style changes here.
Also change your calorie content mixture. Look to limit your carb intake to as little as possible, without limiting healthy fruits and vegetables. Basically stay away from potatoes, bread, pasta and rice. Eat as much lean protein as you would like. Keep fat intake low, but don't eliminate. If you apply these simple guidelines, with the aid of the products below your body fat will gradually melt away.