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Calcium Citrate +D3 Maximum

21st Century
4.7
★ ★ ★ ★ ★
(40 ratings)
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Score 78

A readily absorbable calcium citrate supplement with 500 IU of Vitamin D3, offering reliable support for bone health, especially for those seeking better absorption.

How scoring works
scaleQuantity:400 Tablet(s) • (200 servings)
track_changesGoals:

leaderboard Score 78

A readily absorbable calcium citrate supplement with 500 IU of Vitamin D3, offering reliable support for bone health, especially for those seeking better absorption.

How scoring works
$22.80($0.11 per serving)
Walmart
$ 22.80
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psychologyAnalysis

This product provides 630mg of elemental calcium in the form of calcium citrate, which is often favored for its higher bioavailability, especially when taken without food or by individuals with reduced stomach acid. It is paired with 500 IU of Vitamin D3 (cholecalciferol), a beneficial amount that supports the body's ability to absorb and effectively use calcium.

Calcium citrate is a reliable choice for bone health, as it is generally well-tolerated and absorbed more consistently than calcium carbonate. The inclusion of Vitamin D3 further enhances its effectiveness in contributing to bone mineral density and overall skeletal strength.

This supplement is a solid option for individuals prioritizing absorption efficiency and those who may have digestive sensitivities to other calcium forms. It offers a good balance of quality ingredients and a practical dose for daily support.

thumb_upPros
  • Utilizes calcium citrate, which is generally better absorbed than calcium carbonate.
  • Can be taken with or without food, offering flexibility.
  • Provides a good dose of 500 IU of Vitamin D3 for enhanced calcium utilization.
  • Offers a practical price per serving for its quality.
thumb_downCons
  • The 630mg calcium dose per serving might require multiple tablets for very high daily requirements.
  • Tablets might be large for some individuals to swallow comfortably.
  • While better, calcium citrate still requires careful dosing to avoid overwhelming absorption pathways.
warningWarnings
  • As with any calcium supplement, monitor your total daily calcium intake from all sources.
  • Individuals with hypercalcemia (high blood calcium) should avoid calcium supplementation unless advised by a professional.
  • If you experience any digestive discomfort, consider adjusting the timing or dose.
scienceNutrient quality
85 Highest impact

Calcium citrate is a high-quality, readily absorbable form of calcium. The inclusion of Vitamin D3 further enhances its effectiveness. This combination is a strong point.

visibilityIngredient transparency
85 Highest impact

The product clearly specifies calcium citrate and cholecalciferol (Vitamin D3) as the active ingredients, offering good clarity on the nutrient forms.

workspace_premiumValue for money
88 Highest impact

The combination of a well-absorbed calcium form (citrate) and a good dose of Vitamin D3 at a very competitive price point provides excellent value, particularly for those prioritizing absorption.

thumb_upCustomer satisfaction
75 High impact

With 39 reviews, there's a fair amount of positive feedback for a product of this type, suggesting users are generally satisfied with its performance and value.

storefrontBrand
70 High impact

21st Century is a widely available brand known for providing economical supplements, often offering good value for basic nutrient needs.

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track_changesGoals
flagBone Health
Impact
Highest effect
The use of calcium citrate, a more absorbable form, along with a good dose of Vitamin D3, makes this product highly effective for supporting bone mineral density and overall skeletal health.
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flagNail Health
Impact
High effect
Enhanced absorption of calcium and the presence of Vitamin D3 can contribute to stronger, healthier nails. This product provides a solid foundation for nail integrity.
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flagGeneral Health
Impact
High effect
Supplying highly absorbable calcium and Vitamin D is beneficial for numerous bodily functions, contributing to overall well-being and cellular health. It's a key component for foundational health.
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flagHeart Health
Impact
High effect
Calcium is involved in muscle contraction, including the heart, and Vitamin D can influence cardiovascular health. The well-absorbed form may offer gentle support for these systems.
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flagCardiovascular Support
Impact
High effect
Calcium is involved in muscle contraction, including the heart, and Vitamin D can influence cardiovascular health. The well-absorbed form may offer gentle support for these systems.
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flagJoint Health
Impact
High effect
By maintaining strong bones, calcium indirectly supports joint structures. The good absorption ensures these essential minerals are available for the body's needs.
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flagImmunity
Impact
Moderate effect
Vitamin D, provided at a good dose, plays a recognized role in supporting immune function, and well-absorbed calcium contributes to overall cellular health, indirectly aiding the immune system.
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flagAnti-Aging
Impact
Moderate effect
Maintaining optimal bone health and mineral balance with highly absorbable nutrients is a proactive step in a broader anti-aging strategy, supporting structural integrity as one ages.
View goal →
scienceIngredients
IngredientAmount per serving
Vitamin D3
500 IU
Calcium
630 mg
grain_off Gluten Free person Adults 18–50
flagReport overview
Calcium 85
Features calcium citrate at 630mg, a highly absorbable form of calcium that is generally well-tolerated and effective for meeting daily calcium requirements.
scienceView ingredientinventory_2View products
Vitamin D 75
Contains 500 IU of Vitamin D3, which is a good and effective dose for supporting calcium absorption and broader Vitamin D related functions in the body.
scienceView ingredientinventory_2View products
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