Free List Of Negative Calorie Foods

On http://weight-gains.com/fastweightloss/

You will find a free list of negative calorie foods below, but first let’s consider what this means.
There is no such thing as a negative calorie – a calorie is a unit of heat and it cannot be negative.
So when people talk about negative calorie foods, this just means a food whose calorie level is low enough
that it takes more energy to eat and digest it than the food contains.