No, that's not how it works.
although it's true people with a higher calorie intake are generally fatter.
( Master Of Turnips. Only gays and morons believe in ghosts., Tue 26 Aug 2008, 19:54, archived)

Yes it is.
I don't know how you think the body works, but it uses energy, and calories are a unit of energy.
Excess sugar is converted into fat.
( Moon Girl Technologies horrendous beanbag, Tue 26 Aug 2008, 19:59, archived)

yes it is
a calorie is a calorie. It doesn't matter what foodstuff it used to be, the body stores the extra ones as fat whether they were fat or sugar or carbs before.
( icklepeach *relurks*, Tue 26 Aug 2008, 20:02, archived)

No. The body typically adjusts itself to the amount of calories you take in,
if you eat more sugar, your metabolism increases and vice versa.

it's only the levels of fats and proteins that lead to increases or decreases in mass over a long period
( Master Of Turnips. Only gays and morons believe in ghosts., Tue 26 Aug 2008, 20:03, archived)

You're wronger than I've ever known you be.
www.newton.dep.anl.gov/askasci/mole00/mole00027.htm
( Moon Girl Technologies horrendous beanbag, Tue 26 Aug 2008, 20:10, archived)