Comparison

D-Ribose Tablets and D-Ribose 1,000 mg

D-Ribose Tablets (Life Extension) lists 4 distinct ingredients and D-Ribose 1,000 mg (Source Naturals) 4 (rows of one ingredient counted once); 4 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 1.00: the same ingredients, at the amounts in the table below.

Amount per serving (and % of the Daily Value)
IngredientD-Ribose TabletsD-Ribose 1,000 mg
Carbohydrate5 g3 g
Calcium80 mg (6%)56 mg (4%)
Sugar5 g3 g
Ribose5.1 g3 g

Amounts are per serving as DSLD gives them: D-Ribose Tablets, 5 vegetarian tablets; D-Ribose 1,000 mg, 3 tablets. Current labels entered March 2025 and March 2020. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own