Burn those calories!

Setting:
A Backyard.
A chubby woman is throwing half a cake, half a cookie and a half a tub of ice cream into a fire.
Husband sees the fire and runs over.
Husband: what are you doing??
Wife: my doctor said that if I eat a cookie with 200 calories I need to burn 200 calories.
Husband: ok that makes sense. Why are you burning things in our back yard.
Wife: this cake had 400 calories. So I ate half of it and I am burning the other half!
Husband: I had a huge cheese burger earlier. Do you have anything with 1200 calories I can burn?