Comparison

L-Glutamine 1000 mg and L-Glutamine 500

L-Glutamine 1000 mg (GNC) lists 2 distinct ingredients and L-Glutamine 500 (GNC) 1 (rows of one ingredient counted once); 1 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 0.67.

Amount per serving (and % of the Daily Value)
IngredientL-Glutamine 1000 mgL-Glutamine 500
Glutamine1 g0.5 g
Calcium81 mg (6%)

Amounts are per serving as DSLD gives them: L-Glutamine 1000 mg, 1 caplet; L-Glutamine 500, 1 capsule. Current labels entered July 2020 and October 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own