Calcium 500+D3
21st Century
Calcium 500+D3
4.8
★ ★ ★ ★ ★
(5045 ratings)
Calcium 500 mg
Score 75
An incredibly affordable calcium supplement that includes essential Vitamin D3 for absorption. While it's a great value for basic calcium needs, it lacks other synergistic minerals like magnesium and Vitamin K2 for comprehensive bone and heart health.
Quantity: 400 Tablet(s) • (400 servings)
Goals: flag Bone Health flag Nail Health
leaderboard Score 75
An incredibly affordable calcium supplement that includes essential Vitamin D3 for absorption. While it's a great value for basic calcium needs, it lacks other synergistic minerals like magnesium and Vitamin K2 for comprehensive bone and heart health.
insights Analysis
This product provides 500mg of elemental calcium from oyster shell (a form of calcium carbonate) along with 5mcg (200 IU) of Vitamin D3. The inclusion of Vitamin D3 is a significant advantage, as it is absolutely essential for the absorption of calcium in the gut, making the calcium more effective for its intended goals. The price point is remarkably low, offering excellent value. However, like many basic calcium supplements, it lacks magnesium, which is crucial for bone formation and regulating calcium levels, and Vitamin K2, which helps ensure calcium is deposited in bones rather than soft tissues like arteries. While effective for basic calcium and D supplementation, it doesn't offer the comprehensive mineral profile found in some higher-end bone health formulas.
- Extremely cost-effective, offering one of the lowest prices per serving on the market.
- Includes Vitamin D3, which is essential for calcium absorption and utilization.
- Provides a decent 500mg elemental calcium per serving, suitable for splitting doses or complementing dietary intake.
- Uses oyster shell calcium (calcium carbonate), which may cause digestive issues for some and requires stomach acid for absorption.
- Lacks magnesium and Vitamin K2, both important co-factors for optimal bone mineralization and cardiovascular health.
- Vitamin D3 dose (200 IU) is on the lower side, and some individuals may require more for optimal levels.
- Individuals with low stomach acid may find calcium carbonate less absorbable, potentially necessitating a calcium citrate form.
- Consult a healthcare professional if you have pre-existing kidney conditions or are on medications that interact with calcium or Vitamin D.
$6.72($0.01 per serving)
 Pure Formulas | $ 6.72 | |
 iHerb | $ 10.99 | |
 Walmart | $ 14.58 |
Ingredients
| Ingredient | Amount per serving |
|---|---|
Vitamin D3 | 5 mcg |
Calcium | 500 mg |
Categories
Calcium 75
An excellent budget-friendly calcium supplement due to its inclusion of Vitamin D3 and decent elemental calcium content. Its primary limitation is the lack of a broader spectrum of essential co-factors beyond Vitamin D for comprehensive calcium metabolism.
Goals
The inclusion of Vitamin D3 significantly boosts its efficacy for bone health by improving calcium absorption. However, the absence of magnesium and Vitamin K2 means it's not a complete bone support formula for optimal density and strength.
Essential for muscle contraction and nerve impulses, the calcium and Vitamin D combination adequately supports these physiological functions critical for fitness. It provides a solid foundation, though additional minerals could offer more comprehensive support.
Calcium is important for heart function, and Vitamin D supports overall cardiovascular health. The main concern is the absence of Vitamin K2, which is critical for directing calcium to bones and preventing arterial calcification, making it less ideal for comprehensive heart support.
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