A very heavy blond went to the clinic to lose weight.
The doctor told her to eat what she normally ate for three days and then skip a day. He told her she would have lost at least 4 pounds till the next month.
She came back four weeks later, 30 pounds lighter! The doctor looked at her surprised and said “How do you feel now?”
Blonde: “I am so sore and tired. My muscles ache all over!”
Doctor: “From not eating?”
Blonde: “No from skipping”
Edit: Grammar sorry to sore