Some food it is that easy. Celery, apples, watermelon and pickles are all negative calorie foods. You burn more calories digesting them than you do eating them.
Yea I have heard that about celery, I had no idea pickles were negative calories:O. But I got the inspiration for this post while eating blueberry muffin icecream....if only that was negative calories.
Yeah I wish it was the good stuff like that or pizza.