Every person is different and the pace of weight loss varies from person to person. Some people will lose weight faster than others. Some people have 100 pounds or more to lose — some only need to lose 20 or 30 pounds.There are many variables involved. Here are some simple guidelines that will help you realize how affordable the Medifast Weight Control program really is: 1  Average weekly cost of the program — $12 per week.2  Average food cost for 5 daily meals — $12 per day (less than $2.50 per meal).very person is different and the pace of weight loss varies from person to person. Some people will lose weight faster than others. Some people have 100 pounds or more to lose — some only need to lose 20 or 30 pounds. There are many variables involved.