Daily program diet for losing weight?

Many options! If you want a program that works and has meals pre-made for you so you don't have to measure and track calories, I would try Take Shape for Life. I, myself, used this program and lost 60 lb which has stayed off for 5 years. If that's not appealing, then look at www.myfitnesspal.com for ideas. A great book to read on permanent weight control: Dr. A's Habits of Health by Dr. Wayne Scott Anderson.
500 calories. There are many effective diet programs, although your commitment is necessary. By reducing 500 calories ea day you can reduce your weight by 1 lb ea week until you achieve the weight supported by your caloric intake. Good to get regular exercise too. Also practice meditation 10 minutes daily, since it can help reduce stress and improve willpower.