One pound of body fat equals 3500 calories. To lose one pound per week, you need to eat 500 calories less EACH DAY than are required to maintain your current weight! In five weeks, you will weigh five pounds less than you do now.
When I weighed in at 305 lbs. last Christmas, I knew I had to get serious. Two days ago, I weighed in at 236 lbs.
MyFitnessPal is a free program and if you follow their guidelines, you can safely lose one pound a week or a bit more.
Sure, I hit a plateau and stayed the same weight sometimes for weeks at a time. I thought I would never break through the 240 lb. barrier, but eventually you do adjust to smaller portions.
And, instead of one cup of ice cream (320 calories) each night, I eat one cup of Yonana (strawberry, peach, Dole mixed fruit, etc.) for about 82 calories. For chocoholics, try Hershey's dark chocolate kisses (20 calories each). Limit yourself to three per night. Yes, you can.
The good news is that for most of last spring and summer, I did most of the weight loss with no or little exercise due to several health issues. Now I ride my bike an hour every day. I can eat more and still keep losing.