Comparison

High Potency One-Per-Day Timed-Release Multi-Vitamins & Minerals and Super Once A Day Timed-Release

High Potency One-Per-Day Timed-Release Multi-Vitamins & Minerals (Nature's Harmony) lists 32 distinct ingredients and Super Once A Day Timed-Release (Quest) 33 (rows of one ingredient counted once); 32 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 0.97.

Amount per serving (and % of the Daily Value)
IngredientHigh Potency One-Per-Day Timed-Release Multi-Vitamins & MineralsSuper Once A Day Timed-Release
Vitamin C150 mg (167%)150 mg (167%)
Calcium125 mg (10%)125 mg (10%)
Vitamin B650 mg (2941%)50 mg (2941%)
Vitamin D10 mcg (50%)10 mcg (50%)
Magnesium100 mg (24%)5.3 mg (1%)
Vitamin B12100 mcg (4167%)50 mcg (2083%)
Zinc10 mg (91%)10 mg (91%)
Niacin50 mg (313%)50 mg (313%)
Vitamin E67 mg (447%)33.3 mg (222%)
Potassium8 mg (under 1%)8.3 mg (under 1%)
Folate400 mcg200 mcg
Vitamin A1.04 mg3,022 mcg RAE (336%)
Pantothenic Acid (Vitamin B5)50 mg (1000%)50 mg (1000%)
Riboflavin50 mg (3846%)50 mg (3846%)
Thiamin50 mg (4167%)50 mg (4167%)
Biotin50 mcg (167%)50 mcg (167%)
Chromium100 mcg (286%)25 mcg (71%)
Selenium50 mcg (91%)25 mcg (45%)
Manganese1 mg (43%)1 mg (43%)
Copper1 mg (111%)1 mg (111%)
Iodine100 mcg (67%)100 mcg (67%)
Choline50 mg (9%)50 mg (9%)
Inositol50 mg50 mg
Phosphorus50 mg (4%)50 mg (4%)
Flavonoid25 mg25 mg
PABA50 mg50 mg
Papain2 mg2 mg
Rutin2 mg2 mg
Lecithin15 mg15 mg
Betaine Hydrochloride12 mg12 mg
Hesperidin10 mg10 mg
Cysteine0.6 mg0.6 mg
Iron15 mg (83%)

Amounts are per serving as DSLD gives them: High Potency One-Per-Day Timed-Release Multi-Vitamins & Minerals, 0 tablets; Super Once A Day Timed-Release, 1 tablet. Current labels entered May 2013 and August 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own