A terribly overweight blonde woman goes to her doctor about her
weight, so her doctor puts her on a diet.  

“I want you to eat vegetables and grains for 2 days, then skip a 
day, and repeat this procedure for 2 weeks.  The next time I see 
you, you will have lost at least 5 pounds.”

When the blonde returned, she shocked the doctor by losing nearly 
20 pounds.

“Why, that’s amazing!” the doctor said, “Did you follow my
instructions?”

The blonde nodded.  “I’ll tell you though, I thought I was going 
to drop dead that third day.”

“From hunger, you mean?”
“No, from skipping.”