"For my omega 3 I count 1 gram of fat per capsule in my diet
software."
If your's match mine, I agree. Mine are supposed to have 1000 mg fish
oil of which 180 mg is EPA and 120 mg DHA. They weigh 1500 mg; the
extra 500 mg is supposed to be glycerin and gelatin. At the
manufacturer's recommended dosage of 3 a day, that extra 500 mg can
sure add up over time.
"I also take several grams of an amino acid. I show those as grams of
protein, but I'm not sure if that is the right way to log it."
As far as it goes, I'm certain that's correct, but again, what's the
gross weight of the capsules? I note that my '500 mg' chewable
tablets of Vitamin C weigh 1300 mg, a good chunk of the extra 800 mg
must be sugar, and lots of people chew them up at 6 a day, although I
keep them for when I feel a cold coming on.