3500 calories is the rough estimate for the energy contained in one pound of fat. This means that to lose one pound per week, you must create a deficit of 3500 calories per week. Since a week as 7 days, that means a deficit of 3500 / 7 = 500 calories per day. (taken from this website)
Thought I'd share. I have taken this week off from running and eating right. It has felt good and tasted good too. :-) I haven't had a week off probably since I had Collin. I am ready to get back to running...and I guess I will have to get back to eating right too. Bummer. Dairy Queen was so yummy! Finishing The Crim will be so much better!