Comparison

L-Arginine 500 mg L-Ornithine 500 mg and L-Arginine L-Ornithine

L-Arginine 500 mg L-Ornithine 500 mg (KAL) lists 4 distinct ingredients and L-Arginine L-Ornithine (GNC Pro Performance) 2 (rows of one ingredient counted once); 2 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.69.

Amount per serving (and % of the Daily Value)
IngredientL-Arginine 500 mg L-Ornithine 500 mgL-Arginine L-Ornithine
Arginine500 mg1,500 mg
Ornithine500 mg1,000 mg
Carbohydrate1 g
Fiber1 g

Amounts are per serving as DSLD gives them: L-Arginine 500 mg L-Ornithine 500 mg, 1 tablet; L-Arginine L-Ornithine, 4 tablets. Current labels entered October 2021 and November 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own