Comparison
Vitamin D3 4,000 IU + K2 mcg and Strontium Synergy
Vitamin D3 4,000 IU + K2 mcg (Xtendlife) lists 4 distinct ingredients and Strontium Synergy (Vital Nutrients) 3 (rows of one ingredient counted once); 3 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 0.58.
| Ingredient | Vitamin D3 4,000 IU + K2 mcg | Strontium Synergy |
|---|---|---|
| Calcium | 30 mg (2%) | 300 mg (23%) |
| Vitamin D | 100 mcg (500%) | 15 mcg (75%) |
| Vitamin K | 180 mcg (150%) | 1,000 mcg (833%) |
| Black Currant | 300 mg |
Amounts are per serving as DSLD gives them: Vitamin D3 4,000 IU + K2 mcg, 1 capsule; Strontium Synergy, 2 capsules. Current labels entered September 2024 and March 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Vitamin D3 4,000 IU + K2 mcgXtendlife: every row against all products listing it
- Strontium SynergyVital Nutrients: every row against all products listing it