Calcium 500+D3
21st Century
Score 75
An oyster shell calcium supplement providing 500 mg of calcium with Vitamin D3, offering a balanced approach to bone and nail health.
Score 75
An oyster shell calcium supplement providing 500 mg of calcium with Vitamin D3, offering a balanced approach to bone and nail health.
Also available as 3 options
Analysis
21st Century Calcium 500+D3 uses oyster shell as its calcium source, which is primarily calcium carbonate. The inclusion of Vitamin D3 is key, as Vitamin D helps facilitate the body's uptake and utilization of calcium, crucial for maintaining strong bones and teeth.
This supplement is suitable for individuals looking for a moderate dose of calcium combined with the important co-factor Vitamin D3. It can help bridge dietary gaps for those needing to increase their calcium and Vitamin D intake without taking excessively high doses at once.
Pros
- Provides 500 mg of calcium per serving, a common and manageable dose.
- Includes Vitamin D3 (5 mcg) to assist with calcium absorption.
- Oyster shell calcium is a natural source of calcium carbonate.
- Affordable price per serving.
Cons
- Oyster shell calcium is primarily calcium carbonate, which may require sufficient stomach acid for absorption.
- The Vitamin D3 dose (5 mcg) is on the lower side compared to some alternatives.
- Tablet form might be large for some individuals.
Warnings
- Oyster shell calcium can sometimes contain trace amounts of heavy metals; however, specific testing information is not provided here.
- Take with food for potentially better absorption, especially for calcium carbonate.
- Consult a professional if you have allergies to shellfish, although processing often removes allergenic proteins.
$4.67($0.05 per serving)
 iHerb | $ 4.67 | |
| iHerb | $ 5.49 |
Goals
Impact
High effect
The combination of 500 mg of calcium and Vitamin D3 offers good support for bone density and maintenance. Vitamin D3 is crucial for optimizing calcium's benefits for bones.
Impact
High effect
Providing a good dose of calcium with supportive Vitamin D3, this product can contribute to the structural integrity and health of nails. Consistent calcium intake is beneficial for nail strength.
Ingredients
| Ingredient | Amount per serving |
|---|---|
Vitamin D3 | 5 mcg |
Calcium | 500 mg |
Calcium 78
This product is a solid option within the calcium collection, offering a well-regarded form of calcium (oyster shell) paired with essential Vitamin D3. It meets the criteria for effective calcium supplementation.
Alternative products
88 Value 
Calcium 500 mg with Vitamin D3
Nature's Bounty
This option offers a significantly higher analysis score for the same price per serving, providing a robust blend of calcium (from oyster shell) and Vitamin D3 to effectively support your bone and nail health goals.
82 Value 
Calcium 600 with Vitamin D3
Nature's Bounty
For the same price per serving, this product provides a slightly higher dose of calcium (calcium carbonate) and a more robust dose of Vitamin D3, offering enhanced support for bone and nail health.
85 Value 
Calcium + Vitamin D
Swisse Ultiboost
While a bit higher in cost per serving, this product features a good mix of calcium carbonate and calcium citrate with a strong dose of Vitamin D, offering a more comprehensive and highly rated approach to bone and nail support.
88 Performance 
Bone Builder Extra Strength
Metagenics
This product features Microcrystalline Hydroxyapatite Concentrate (MCHC), a comprehensive source of calcium and phosphorus in a natural bone matrix, offering superior support for bone density and nail integrity.
88 Performance 
Bone Solid
Country Life
This advanced bone health formula includes multiple forms of calcium, Vitamin D3, Vitamin K, and a wide spectrum of essential minerals, all designed to synergistically support robust bones and healthy nails.
88 Performance 
Bone Restore with Vitamin K2
Life Extension
This alternative provides highly bioavailable forms of calcium along with Vitamin D3 and Vitamin K2, a crucial combination that helps optimize calcium utilization and its proper placement for strong bones and nails.
70 Budget 
Complete Multivitamin Adults 50+
Equate
This option offers a broader nutritional profile, including calcium and Vitamin D3, at a slightly lower cost per serving, which can be beneficial for overall well-being beyond just bone and nail health.
75 Budget 
600+D3
21st Century
This is an even more economical choice per serving, providing a good dose of calcium carbonate with Vitamin D3, which effectively contributes to bone and nail health if budget is a primary concern.
72 Budget 
Complete Multivitamin Adults 50+
Equate
For a very low cost per serving, this multivitamin provides calcium and a good amount of Vitamin D3, along with many other beneficial nutrients, which offers broad nutritional support.
88 Value
Calcium 500 mg with Vitamin D3
Nature's Bounty
This option offers a significantly higher analysis score for the same price per serving, providing a robust blend of calcium (from oyster shell) and Vitamin D3 to effectively support your bone and nail health goals.
82 Value
Calcium 600 with Vitamin D3
Nature's Bounty
For the same price per serving, this product provides a slightly higher dose of calcium (calcium carbonate) and a more robust dose of Vitamin D3, offering enhanced support for bone and nail health.
85 Value
Calcium + Vitamin D
Swisse Ultiboost
While a bit higher in cost per serving, this product features a good mix of calcium carbonate and calcium citrate with a strong dose of Vitamin D, offering a more comprehensive and highly rated approach to bone and nail support.
88 Performance
Bone Builder Extra Strength
Metagenics
This product features Microcrystalline Hydroxyapatite Concentrate (MCHC), a comprehensive source of calcium and phosphorus in a natural bone matrix, offering superior support for bone density and nail integrity.
88 Performance
Bone Solid
Country Life
This advanced bone health formula includes multiple forms of calcium, Vitamin D3, Vitamin K, and a wide spectrum of essential minerals, all designed to synergistically support robust bones and healthy nails.
88 Performance
Bone Restore with Vitamin K2
Life Extension
This alternative provides highly bioavailable forms of calcium along with Vitamin D3 and Vitamin K2, a crucial combination that helps optimize calcium utilization and its proper placement for strong bones and nails.