I am 58 and I weigh 34lbs more than I did when I was 18.
That's an annual weight gain of 0.85 lb a year over the 40 years.
To put on 1lb, you need to overeat by 3500 calories, so I have over eaten by 2,975 calories every year.
That's 8 calories a day, which is one jelly tot.
I don't even eat jelly tots.