Debunking a Long-Used Rule
According to the researchers, it is easy to gain weight unwittingly from a very small imbalance in the number of calories consumed over calories used. Just 10 extra calories a day is all it takes to raise the body weight of the average person by 20 pounds in 30 years, the authors wrote.
10 surplus calories per day * 365 days per year * 30 years = 109500 surplus calories. Assuming the "debunked rule" that would be 109500 surplus calories / 3500 calories per pound = 31 pounds.
Hmm. They only gained 2/3 of the weight they were "supposed" to by the rule. So they found you put on weight slower and take it off slower than the previously thought. So eat up fatties. You can eat 33% more and not gain any more weight than you would have previously thought.