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Calcium Citrate +D3 Maximum

21st Century
4.8
(24718 ratings)
Calcium 630 mg
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Score 90.0

An outstanding value calcium citrate and D3 supplement, highly accessible and effective for daily bone health support, despite a moderate calcium dosage.

Quantity: 120 Tablet(s)Servings size: 2 Tablet(s) (60 servings)
Selected goals:
Other goals:
Bone Health
Joint Health
Heart Health
Fitness
Muscle Gain

Score 90.0

An outstanding value calcium citrate and D3 supplement, highly accessible and effective for daily bone health support, despite a moderate calcium dosage.

Quantity: 75
Analysis

This 21st Century product distinguishes itself with an exceptionally low price point for a calcium supplement that includes both the highly absorbable citrate form and essential Vitamin D3. Nutritionists frequently recommend calcium citrate for its bioavailability, especially for individuals with varied stomach acid levels, and the inclusion of D3 is critical for ensuring optimal calcium absorption and bone mineralization. While its elemental calcium quantity of 630mg per serving is moderately lower than some higher-dose options, it is still a significant contribution to daily calcium needs, especially when combined with dietary intake. The product's massive review count (over 24,000) strongly attests to its immense popularity and perceived value among consumers, making it an excellent, accessible choice for daily calcium and D3 supplementation.

Pros
  • Outstandingly low price per serving, making it highly accessible.
  • Contains absorbable Calcium Citrate, suitable for various stomach acid levels.
  • Includes essential Vitamin D3, crucial for optimal calcium absorption.
  • Extremely high review count (24k+) indicates immense popularity and consumer satisfaction.
Cons
  • The elemental calcium dose of 630mg is lower than some higher-potency supplements, which might require more tablets or additional dietary calcium for those with higher needs.
  • Does not include other synergistic bone nutrients like Magnesium or Vitamin K2.
$8.49($0.14 per serving)
Amazon
$ 8.49
iHerb
$ 8.49
Ingredients
IngredientAmount per serving
Vitamin D3 (Cholecalciferol) 13 mcg
Calcium (Calcium Citrate) 630 mg
Gluten Free Adults 18–50
Categories
Calcium 90.0
This product represents excellent value within the calcium category, providing a well-absorbed form (citrate) with the critical co-factor Vitamin D3 at an incredibly low price. It stands out for its cost-effectiveness without significantly compromising on quality or efficacy for daily calcium needs.
Goals
Bone Health 92.0
The synergistic combination of calcium citrate and Vitamin D3 is highly effective for maintaining bone density and preventing bone loss. While the 630mg dose isn't the highest, its absorbability and the inclusion of D3 make it a very strong contender for promoting skeletal health.
Heart Health 85.0
Calcium and Vitamin D are both vital for cardiovascular health, including proper muscle contraction and blood pressure regulation. The D3 helps ensure calcium is metabolized correctly, contributing positively to heart function, though additional K2 would further optimize arterial health.
Fitness 85.0
Essential for muscle function, nerve transmission, and energy metabolism, adequate calcium and Vitamin D levels are fundamental for athletic performance and recovery. This supplement effectively provides these nutrients to support physical activity.
85 Value

Calcium + Vitamin D

Swisse Ultiboost
4.6
(1270 ratings)
While slightly more expensive per serving (19 vs 11), it offers a higher dose of calcium citrate (1020mg) along with Vitamin D, providing a higher overall elemental calcium intake for comprehensive support.
75 Value

Calcium Magnesium Zinc + D3

21st Century
4.7
(97627 ratings)
At a slightly higher price per serving (13 vs 11), it offers D3, Magnesium, and Zinc in addition to calcium, providing broader mineral support for an excellent value, despite using calcium carbonate.
90 Value

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
Though a bit pricier per serving (25 vs 11), it offers the superior MCH-Cal form with Vitamin K2 (MK7), providing significantly better overall bone health support, making it an excellent value for those seeking advanced benefits.
95 Performance

Raw Calcium

Garden of Life Vitamin Code
4.6
(4135 ratings)
Offers whole-food, plant-based algae calcium, which is highly bioavailable and naturally comes with a spectrum of bone-supporting minerals, providing a more comprehensive and natural approach to bone health than isolated mineral salts.
90 Performance

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
Contains Microcrystalline Hydroxyapatite (MCHA), which is a complete bone matrix, along with Vitamin K2 (MK7) to ensure proper calcium utilization and deposition into bones, making it superior for targeted bone support.
92 Performance

Stronger Bones

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4.6
(117 ratings)
Features Eggshell Calcium, a natural source rich in calcium and other trace minerals crucial for bone health, offering a more bioavailable and comprehensive profile than synthetic forms, contributing to stronger bones.
45 Budget

Calcium 500+D3

21st Century
4.8
(5027 ratings)
Offers calcium with D3 for an even lower price per serving (4 vs 11), making it an ultra-budget-friendly option for basic calcium and D3 needs, though with a lower calcium dose and Oyster form.
45 Budget

Calcium 500 + D3

21st Century
4.8
(4030 ratings)
Also provides calcium with D3 at an incredibly low price per serving (3 vs 11), similar to the previous entry, offering minimal cost for essential daily calcium and D3, despite the oyster shell form.
60 Budget

Calcium (Carbonate Aspartate & Citrate) 500 mg

Swanson Premium Brand
4.8
(307 ratings)
Provides calcium citrate at a very competitive price (4 vs 11) for a 500mg dose. While it lacks D3, its extremely low cost for a good calcium form makes it a compelling budget alternative if D3 is obtained elsewhere.
85 Value

Calcium + Vitamin D

Swisse Ultiboost
4.6
(1270 ratings)
While slightly more expensive per serving (19 vs 11), it offers a higher dose of calcium citrate (1020mg) along with Vitamin D, providing a higher overall elemental calcium intake for comprehensive support.
75 Value

Calcium Magnesium Zinc + D3

21st Century
4.7
(97627 ratings)
At a slightly higher price per serving (13 vs 11), it offers D3, Magnesium, and Zinc in addition to calcium, providing broader mineral support for an excellent value, despite using calcium carbonate.
90 Value

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
Though a bit pricier per serving (25 vs 11), it offers the superior MCH-Cal form with Vitamin K2 (MK7), providing significantly better overall bone health support, making it an excellent value for those seeking advanced benefits.
95 Performance

Raw Calcium

Garden of Life Vitamin Code
4.6
(4135 ratings)
Offers whole-food, plant-based algae calcium, which is highly bioavailable and naturally comes with a spectrum of bone-supporting minerals, providing a more comprehensive and natural approach to bone health than isolated mineral salts.
90 Performance

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
Contains Microcrystalline Hydroxyapatite (MCHA), which is a complete bone matrix, along with Vitamin K2 (MK7) to ensure proper calcium utilization and deposition into bones, making it superior for targeted bone support.
92 Performance

Stronger Bones

Garden of Life Dr. Formulated
4.6
(117 ratings)
Features Eggshell Calcium, a natural source rich in calcium and other trace minerals crucial for bone health, offering a more bioavailable and comprehensive profile than synthetic forms, contributing to stronger bones.