Comparison
Calcium Magnesium & D Formula and Osteo 4000 Calcium
Calcium Magnesium & D Formula (Windmill Rx Premium Vitamins) lists 7 distinct ingredients and Osteo 4000 Calcium (chiropractor's blend) 8 (rows of one ingredient counted once); 7 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 0.83.
| Ingredient | Calcium Magnesium & D Formula | Osteo 4000 Calcium |
|---|---|---|
| Vitamin C | 90 mg (100%) | 72 mg (80%) |
| Calcium | 1,000 mg (77%) | 1,000 mg (77%) |
| Vitamin D | 10 mcg (50%) | 30 mcg (150%) |
| Magnesium | 400 mg (95%) | 450 mg (107%) |
| Zinc | 10 mg (91%) | 18 mg (164%) |
| Vitamin K | 80 mcg (67%) | 120 mcg (100%) |
| Phosphorus | 250 mg (20%) | 500 mg (40%) |
| Boron | 2 mg |
Amounts are per serving as DSLD gives them: Calcium Magnesium & D Formula, 3 caplets; Osteo 4000 Calcium, 2 capsules. Current labels entered April 2012 and September 2025. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Calcium Magnesium & D FormulaWindmill Rx Premium Vitamins: every row against all products listing it
- Osteo 4000 Calciumchiropractor's blend: every row against all products listing it