Calcium Citrate +D3 Maximum
21st Century
Calcium Citrate +D3 Maximum
4.8
★ ★ ★ ★ ★
(19485 ratings)
Calcium 630 mg
Score 88
A high-quality calcium supplement featuring easily absorbed Calcium Citrate and vital Vitamin D3, offering superior support for bone health and overall calcium needs.
Quantity: 75 Tablet(s) • (37 servings)
Goals: flag Bone Health flag Nail Health
leaderboard Score 88
A high-quality calcium supplement featuring easily absorbed Calcium Citrate and vital Vitamin D3, offering superior support for bone health and overall calcium needs.
insights Analysis
21st Century's Calcium Citrate +D3 Maximum is an outstanding choice for calcium supplementation due to its premium ingredient profile. It delivers 630mg of elemental calcium as Calcium Citrate, a form widely recommended by nutritionists for its high bioavailability and gentle nature on the digestive system, making it suitable for consumption with or without food and ideal for individuals with reduced stomach acid. The crucial addition of 13mcg (520 IU) of Vitamin D3 further enhances its efficacy, ensuring that the absorbed calcium is efficiently utilized by the body for bone mineralization and other vital functions. This combination provides comprehensive and effective support for bone density and overall skeletal health.
- Uses highly bioavailable Calcium Citrate.
- Includes essential Vitamin D3 for optimal absorption.
- Can be taken with or without food.
- Excellent for those with sensitive digestion.
- Very popular and well-reviewed.
- Price per serving is higher than basic calcium carbonate products, but justified by form.
$6.49($0.17 per serving)
 iHerb | $ 6.49 |
Ingredients
| Ingredient | Amount per serving |
|---|---|
Vitamin D3 | 13 mcg |
Calcium | 630 mg |
Categories
Calcium 90
Provides calcium in the highly bioavailable citrate form, combined with essential Vitamin D3, making it an excellent and easily absorbed calcium source.
Goals
Combines a highly bioavailable form of calcium (citrate) with essential Vitamin D3, ensuring excellent absorption and utilization for comprehensive bone mineralization and maintenance.
Provides highly absorbable calcium and D3, vital for robust bone strength and muscle function, which are foundational for peak physical performance and recovery.
Supports joint health effectively by promoting strong bones and cartilage through optimal calcium and D3 utilization.
85 Value 
Calcium Magnesium Zinc + D3
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4.7
★★★★★
(97627 ratings)
Offers a comprehensive blend of calcium, magnesium, zinc, and D3 at an exceptionally low price, providing significantly more synergistic nutrients for better overall bone health value.
90 Value 
600 + D3 plus Minerals
21st Century
4.8
★★★★★
(1551 ratings)
A 21st Century product that includes calcium, D3, and a range of essential trace minerals, offering a more complete bone support formula at a superior value compared to the original.
88 Value 
Calcium + Vitamin D
Swisse Ultiboost
4.6
★★★★★
(1270 ratings)
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96 Performance 
Calcium Bone Maker Complex with MCH-Cal and VitaMK7
Doctor's Best
4.7
★★★★★
(6735 ratings)
A superior alternative with MCH-Cal, Vitamin D3, K2, and essential minerals, offering a more comprehensive and potent approach to bone health compared to standard calcium citrate.
98 Performance 
Raw Calcium
Garden of Life Vitamin Code
4.6
★★★★★
(4135 ratings)
A highly comprehensive plant-based calcium with a full spectrum of bone-supporting nutrients like D3, K2, and magnesium, delivering a more holistic and bioavailable approach to bone health.
93 Performance 
Liquid Cal/Mag/Zinc Natural Strawberry Flavor
Trace Minerals
4.4
★★★★★
(1954 ratings)
A liquid formula with highly absorbable calcium, magnesium, zinc, and D3, providing a more complete and bioavailable mineral profile for comprehensive bone support.
50 Budget 
600 Calcium Supplement
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4.7
★★★★★
(4047 ratings)
Provides basic calcium carbonate at a significantly lower price per serving, suitable for budget-conscious consumers seeking fundamental calcium intake.
80 Budget 
600+D3
21st Century
4.8
★★★★★
(6905 ratings)
Offers calcium carbonate with Vitamin D3 at a much lower price per serving, presenting a more economical choice while still including an absorption enhancer.
70 Budget 
Calcium 500+D3
21st Century
4.8
★★★★★
(5027 ratings)
A very inexpensive oyster shell calcium with D3, offering similar foundational benefits at a much lower cost per serving.
85 Value
Calcium Magnesium Zinc + D3
21st Century
4.7
★★★★★
(97627 ratings)
Offers a comprehensive blend of calcium, magnesium, zinc, and D3 at an exceptionally low price, providing significantly more synergistic nutrients for better overall bone health value.
90 Value
600 + D3 plus Minerals
21st Century
4.8
★★★★★
(1551 ratings)
A 21st Century product that includes calcium, D3, and a range of essential trace minerals, offering a more complete bone support formula at a superior value compared to the original.
88 Value
Calcium + Vitamin D
Swisse Ultiboost
4.6
★★★★★
(1270 ratings)
Combines calcium citrate (better absorption) and carbonate with D3, offering a balanced and effective formula at a competitive price, delivering excellent value.
96 Performance
Calcium Bone Maker Complex with MCH-Cal and VitaMK7
Doctor's Best
4.7
★★★★★
(6735 ratings)
A superior alternative with MCH-Cal, Vitamin D3, K2, and essential minerals, offering a more comprehensive and potent approach to bone health compared to standard calcium citrate.
98 Performance
Raw Calcium
Garden of Life Vitamin Code
4.6
★★★★★
(4135 ratings)
A highly comprehensive plant-based calcium with a full spectrum of bone-supporting nutrients like D3, K2, and magnesium, delivering a more holistic and bioavailable approach to bone health.
93 Performance
Liquid Cal/Mag/Zinc Natural Strawberry Flavor
Trace Minerals
4.4
★★★★★
(1954 ratings)
A liquid formula with highly absorbable calcium, magnesium, zinc, and D3, providing a more complete and bioavailable mineral profile for comprehensive bone support.