Comparison

Extra Strength Joint Maintenance Glucosamine Chondroitin Complex and Joint Maintenance 2700

Extra Strength Joint Maintenance Glucosamine Chondroitin Complex (Good 'N Natural) lists 7 distinct ingredients and Joint Maintenance 2700 (MaritzMayer Laboratories) 6 (rows of one ingredient counted once); 6 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 0.87.

Amount per serving (and % of the Daily Value)
IngredientExtra Strength Joint Maintenance Glucosamine Chondroitin ComplexJoint Maintenance 2700
Carbohydrate2 g2 g
Vitamin C500 mg (556%)500 mg (556%)
Sodium115 mg100 mg
Manganese5 mg (217%)5 mg (217%)
Chondroitin Sulfate1,200 mg1,200 mg
Glucosamine Sulfate1.5 g1.5 g
Fiber1 g

Amounts are per serving as DSLD gives them: Extra Strength Joint Maintenance Glucosamine Chondroitin Complex, 3 tablets; Joint Maintenance 2700, 3 tablets. Current labels entered July 2012 and July 2015. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own