Comparison

Gluco-Science and Complete Gluco-D

Gluco-Science (Source Naturals) lists 38 distinct ingredients and Complete Gluco-D (Nutri-West) 30 (rows of one ingredient counted once); 23 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 0.43.

Amount per serving (and % of the Daily Value)
IngredientGluco-ScienceComplete Gluco-D
Vitamin B633 mg (1941%)15 mg (882%)
Magnesium50 mg (12%)1.6 mg (under 1%)
Vitamin B12180 mcg (7500%)100 mcg (4167%)
Zinc3 mg (27%)1.5 mg (14%)
Niacin66 mg (413%)30 mg (188%)
Folate200 mcg100 mcg
Pantothenic Acid (Vitamin B5)16 mg (320%)30 mg (600%)
Thiamin8 mg (667%)15 mg (1250%)
Biotin1,600 mcg (5333%)30 mcg (100%)
Chromium133 mcg (380%)50 mcg (143%)
Selenium33 mcg (60%)20 mcg (36%)
Manganese1 mg (43%)0.5 mg (22%)
Inositol17 mg25 mg
Taurine100 mg30 mg
Coenzyme Q-103 mg2.5 mg
Alpha Lipoic Acid200 mg2.5 mg
Glutamine0.066 g0.03 g
Quercetin33 mg5 mg
Vanadium33 mcg160 mcg
Eleuthero20 mg30 mg
Fenugreek149 mg15 mg
Gymnema121 mg60 mg
Bitter Melon150 mg25 mg
Vitamin C250 mg (278%)
Vitamin D8.35 mcg (42%)
Vitamin E66 IU
Potassium3 mg (under 1%)
Riboflavin8 mg (615%)
Grape35 mg
Proteolytic Enzymes (Proteases)5 mg
Lipase5 mg
Amylase5 mg
Garlic50 mg
Bilberry40 mg
N-Acetyl Cysteine166 mg
Oriental Ginseng20 mg
Hawthorn66 mg
Acetyl L-Carnitine10 mg
Maitake Mushroom50 mg
Holy Basil66 mg
American Ginseng66 mg
Prickly Pear Cactus66 mg
Benfotiamine35 mg
Cinnamomum (unspecified)100 mg
Myricetin16 mg

Amounts are per serving as DSLD gives them: Gluco-Science, 2 tablets; Complete Gluco-D, 1 tablet. Current labels entered February 2020 and November 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own