In article m,
wrote:

Really, it varies from person to person. You'll probably have to
experiment a bit. But keep in mind the gov't recommends is what a couch
potato needs. If you're burning up more energy, you need more calories.
Keep in mind that there are
9 calories in 1 gram of fat
4 calories in 1 gram of protein
4 calories in 1 gram of carbohydrate.
And that's all there is . . . fat, protein, and carbs.

Hey, you can't forget alcohol, I think it's 7 cal/g

:-)