Comparison

My Prenatal and Basic Preventive 3 (Plus Iron)

My Prenatal (Highland Laboratories) lists 33 distinct ingredients and Basic Preventive 3 (Plus Iron) (Douglas Laboratories) 30 (rows of one ingredient counted once); 29 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 0.80.

Amount per serving (and % of the Daily Value)
IngredientMy PrenatalBasic Preventive 3 (Plus Iron)
Vitamin C120 mg (133%)1,200 mg (1333%)
Calcium800 mg (62%)500 mg (38%)
Vitamin B65 mg (294%)50 mg (2941%)
Vitamin D50 mcg (250%)2.5 mcg (13%)
Magnesium500 mg (119%)500 mg (119%)
Vitamin B12100 mcg (4167%)100 mcg (4167%)
Zinc15 mg (136%)20 mg (182%)
Niacin40 mg (250%)200 mg (1250%)
Vitamin E150 IU400 IU
Potassium50 mg (1%)99 mg (2%)
Folate800 mcg800 mcg
Vitamin Anot disclosed25,000 IU
Pantothenic Acid (Vitamin B5)20 mg (400%)400 mg (8000%)
Riboflavin5 mg (385%)50 mg (3846%)
Thiamin5 mg (417%)100 mg (8333%)
Biotin1,000 mcg (3333%)300 mcg (1000%)
Iron20 mg (111%)20 mg (111%)
Chromium100 mcg (286%)200 mcg (571%)
Selenium50 mcg (91%)200 mcg (364%)
Manganese2 mg (87%)20 mg (870%)
Copper1 mg (111%)2 mg (222%)
Iodine175 mcg (117%)150 mcg (100%)
Choline20 mg (4%)150 mg (27%)
Vitamin K80 mcg (67%)60 mcg (50%)
Molybdenum80 mcg (178%)150 mcg (333%)
Inositol20 mg50 mg
Flavonoid16 mg100 mg
Vanadium25 mcg39 mcg
PABA10 mg50 mg
Ginger25 mg
DHA90 mg
Boron2 mg
Papain20 mg
Lecithin20 mg

Amounts are per serving as DSLD gives them: My Prenatal, 4 capsules; Basic Preventive 3 (Plus Iron), 6 tablets. Current labels entered November 2017 and February 2017. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own