SuppHelper
search
Home›Supplements›Mineral›Calcium›Calcium Citrate +D3 Maximum 21st Century
Product Image

Calcium Citrate +D3 Maximum

21st Century
4.6
★ ★ ★ ★ ★
(39 ratings)
Calcium 630 mg
Vitamin D 500 IU
Product Image
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.

scaleQuantity:400 Tablet(s) • (200 servings)
track_changesGoals:
flag Bone Health
flag Nail Health
flag General Health
flag Cardiovascular Support
flag Heart Health
flag Joint Health
flag Immunity
flag Anti-Aging

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.

insightsAnalysis

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.
flagReport analysis
$22.80($0.11 per serving)
Walmart
$ 22.80
flagReport prices
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.
View goal →
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.
View goal →
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.
View goal →
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.
View goal →
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.
View goal →
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.
View goal →
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.
View goal →
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
inventory_2Alternative products
85 Value

Calcium with Vitamin D3

AN Amazing Nutrition Amazing Formulas
4.4
★★★★★
(995 ratings)
While containing calcium carbonate, this product offers a high dose of 1200mg calcium and a robust 1000 IU of Vitamin D3 for a very comparable price per serving. The increased Vitamin D3 can help with absorption, making it a great value for strong bone and nail support.
Other sellers (3)
75 Value

Calcium 1200 mg plus D3 5000 IU

Nature's Truth
4.6
★★★★★
(2125 ratings)
You get a substantial 1200mg of calcium carbonate and a very high 5000 IU of Vitamin D3 with this option. The significantly increased Vitamin D3 can greatly improve calcium absorption, providing superior bone and nail support for a very competitive price.
Other sellers (3)
70 Value

Cal/Mag Plus with Vitamin D and Vitamin K2 MK-7

Metabolic Maintenance
4.7
★★★★★
(352 ratings)
This alternative provides calcium in well-absorbed citrate and malate forms (334mg), along with magnesium, a moderate dose of Vitamin D3 (332 IU), and Vitamin K2. For a price per serving comparable to your current product, it offers a more complete and highly bioavailable nutrient profile for bone health.
Other sellers (2)
88 Performance

Bone Restore with Vitamin K2

Life Extension
4.7
★★★★★
(9986 ratings)
This comprehensive supplement provides highly absorbable calcium forms (bisglycinate chelate, dicalcium malate), a good 1000 IU of Vitamin D3, and crucially, Vitamin K2 and Magnesium. These additional nutrients synergistically support calcium utilization and bone density, offering a more complete approach to bone and nail health.
Other sellers (4)
89 Performance

Organic Plant Calcium

Garden of Life MyKind Organics
4.8
★★★★★
(5374 ratings)
If you're looking for a plant-based option with enhanced benefits, this product offers 800mg of calcium from organic algae, along with 1000 IU of Vitamin D (D2/D3 blend), Vitamin K2, and magnesium. It's a high-scoring choice for comprehensive bone and nail support.
Other sellers (3)
78 Performance

Cal-Mag Citrate with Vitamin D-3 & K-2 2:1 Ratio

Solaray
4.7
★★★★★
(1680 ratings)
This option offers a similar dosage of calcium (1000mg) in the well-absorbed citrate form, along with magnesium, a good 1000 IU of Vitamin D3, and Vitamin K2. The inclusion of K2 and magnesium provides enhanced support for calcium delivery to bones, making it a strong alternative for bone and nail health.
Other sellers (3)
78 Budget

Calcium Citrate Plus Vitamin D3

Mason Natural
4.8
★★★★★
(864 ratings)
This alternative also provides calcium in the citrate form, making it a good choice for absorption. It's available at an even lower price per serving than your current product, making it highly economical for bone and nail support, though the dosage is lower per serving.
Other sellers (1)
65 Budget

Oysco 500+D

Rugby
4.9
★★★★★
(17 ratings)
For a very budget-friendly option, this provides 500mg of calcium from oyster shell and 200 IU of Vitamin D3. It's a straightforward choice for basic bone and nail health at a lower cost.
Other sellers (0)
75 Budget

Calcium Supplement Petites +D3

Citracal
4.7
★★★★★
(9022 ratings)
These 'Petites' provide 400mg of calcium with a helpful 500 IU of Vitamin D3, offering a smaller size for easier swallowing. It's a very affordable alternative that still provides good calcium and D support.
Other sellers (3)
85 Value

Calcium with Vitamin D3

AN Amazing Nutrition Amazing Formulas
4.4
★★★★★
(995 ratings)
While containing calcium carbonate, this product offers a high dose of 1200mg calcium and a robust 1000 IU of Vitamin D3 for a very comparable price per serving. The increased Vitamin D3 can help with absorption, making it a great value for strong bone and nail support.
Other sellers (3)
75 Value

Calcium 1200 mg plus D3 5000 IU

Nature's Truth
4.6
★★★★★
(2125 ratings)
You get a substantial 1200mg of calcium carbonate and a very high 5000 IU of Vitamin D3 with this option. The significantly increased Vitamin D3 can greatly improve calcium absorption, providing superior bone and nail support for a very competitive price.
Other sellers (3)
70 Value

Cal/Mag Plus with Vitamin D and Vitamin K2 MK-7

Metabolic Maintenance
4.7
★★★★★
(352 ratings)
This alternative provides calcium in well-absorbed citrate and malate forms (334mg), along with magnesium, a moderate dose of Vitamin D3 (332 IU), and Vitamin K2. For a price per serving comparable to your current product, it offers a more complete and highly bioavailable nutrient profile for bone health.
Other sellers (2)
88 Performance

Bone Restore with Vitamin K2

Life Extension
4.7
★★★★★
(9986 ratings)
This comprehensive supplement provides highly absorbable calcium forms (bisglycinate chelate, dicalcium malate), a good 1000 IU of Vitamin D3, and crucially, Vitamin K2 and Magnesium. These additional nutrients synergistically support calcium utilization and bone density, offering a more complete approach to bone and nail health.
Other sellers (4)
89 Performance

Organic Plant Calcium

Garden of Life MyKind Organics
4.8
★★★★★
(5374 ratings)
If you're looking for a plant-based option with enhanced benefits, this product offers 800mg of calcium from organic algae, along with 1000 IU of Vitamin D (D2/D3 blend), Vitamin K2, and magnesium. It's a high-scoring choice for comprehensive bone and nail support.
Other sellers (3)
78 Performance

Cal-Mag Citrate with Vitamin D-3 & K-2 2:1 Ratio

Solaray
4.7
★★★★★
(1680 ratings)
This option offers a similar dosage of calcium (1000mg) in the well-absorbed citrate form, along with magnesium, a good 1000 IU of Vitamin D3, and Vitamin K2. The inclusion of K2 and magnesium provides enhanced support for calcium delivery to bones, making it a strong alternative for bone and nail health.
Other sellers (3)
flagReport alternatives

SuppHelper

Compare supplements smarter. Science-backed, user-rated, updated daily.

Explore

  • Compare Supplements
  • Health Goals
  • Stacks

Legal

  • Privacy Policy
  • Terms of Use
  • Medical Disclaimer

Stay in the Loop

© 2025 SuppHelper. All rights reserved.