Calcium Citrate Petites + D3
21st Century Calcium Citrate Petites + D3 is a joint and bone support supplement with two active ingredients: Calcium Citrate at 400mg and Vitamin D3 at 13mcg (520 IU) per two-tablet serving. The Calcium content is at a clinically studied dose, which may support bone health. However, the Vitamin D3 dosage is considered underdosed compared to amounts often recommended for optimal bone support. This product has an N+ Score of 47, resulting in an 'F' grade, placing it in a below-average tier. While it offers a clinically relevant dose of Calcium, the underdosed Vitamin D3 and limited ingredient profile contribute to its lower overall score. It may be suitable for individuals looking for a basic calcium supplement, but a more comprehensive formula might be beneficial for broader bone health support.
About This Product
Calcium Citrate Petites + D3 by 21st Century is a joint & bone supplement containing 2 active ingredients. It has earned an N+ Score of 47/100 (Grade F).
Notable clinical-dose ingredients include Calcium.
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Fully transparent label with individual ingredient amounts disclosed
- +1 ingredient(s) at clinical dose levels
Weaknesses
- −Several ingredients below clinically effective doses
- −Missing several expected ingredients for its category
Ingredient Analysis (2 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Calcium | 400.000 mg | Adequate |
| Vitamin D3 | 13.000 mcg | Under |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.