how is it possible to gain?

Ive pretty much asked the hospital staff the same question..because I was a bit shocked to meet a woman who went in to have her pouch made smaller (for the 4th time in 5 years).

One of the nurses put it this way:

Lets say you are burning 1200 cals per day, and you eat exactly that amount...plus ONE single patato chip in the evening (which equals about 12 cals) you will have eaten 4380 cals too much in one year.

1kg (2.2 pounds) bodyfat are worth about 700cals.

So..at the end of this year you will literally have gained 6.25kg (13.77 pounds).

We all know that we dont stop at ONE patato chip....