Product Image

Calcium Hydroxyapatite Caps

NOW
4.8
(5986 ratings)
Phosphorus 200 mg
Calcium 500 mg
Product Image
Score 75.0

This NOW product provides a solid dose of highly bioavailable Calcium Hydroxyapatite, a natural and effective form for bone health. Its main limitation is the absence of crucial Vitamin D3 and K2, which are essential for optimal calcium absorption and utilization.

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

Score 75.0

This NOW product provides a solid dose of highly bioavailable Calcium Hydroxyapatite, a natural and effective form for bone health. Its main limitation is the absence of crucial Vitamin D3 and K2, which are essential for optimal calcium absorption and utilization.

Analysis

NOW's Calcium Hydroxyapatite Caps offer a good 500mg dose of calcium per serving in the highly regarded Calcium Hydroxyapatite form, which closely mirrors the mineral structure of human bone and is known for excellent bioavailability. This form also naturally includes phosphorus, supporting comprehensive bone mineralization. With 5667 reviews, it's a popular and well-received product. However, similar to many standalone calcium supplements, it lacks critical co-factors such as Vitamin D3 and Vitamin K2. These vitamins are vital for ensuring calcium is properly absorbed from the gut and subsequently directed into the bones, preventing undesirable calcification in soft tissues like arteries. Without these synergistic nutrients, the product's full potential for bone and cardiovascular health may not be realized, requiring users to supplement these vitamins separately.

Pros
  • Contains Calcium Hydroxyapatite, an excellent and highly bioavailable form of calcium that naturally includes phosphorus, mimicking bone composition.
  • Offers a practical 500mg elemental calcium per serving, making it easier to meet daily requirements than very low-dose products.
  • Very popular with a high review count, indicating customer satisfaction.
Cons
  • Does not include essential co-factors like Vitamin D3 and Vitamin K2, which are vital for calcium absorption and proper deposition into bones.
  • May require two servings daily to reach optimal calcium intake for many adults, increasing the effective cost.
$10.40($0.17 per serving)
Daily Vita
$ 11.60
Amazon
$ 10.40
Walmart
$ 15.27
iHerb
$ 12.24
Pure Formulas
$ 12.15
Vitacost
$ 11.49
Ingredients
IngredientAmount per serving
Calcium (Calcium Hydroxyapatite) 500 mg
Phosphorus (Phosphorus Hydroxyapatite) 200 mg
Gluten Free Adults 18–50 Kosher Dairy Free
Categories
Calcium 75.0
Provides 500mg of highly bioavailable Calcium Hydroxyapatite, a superior form. The dose is reasonable, though two servings might be needed for adults to meet full RDA.
Phosphorus 75.0
Offers 200mg of Phosphorus Hydroxyapatite, an excellent and naturally occurring form that complements the calcium. The quantity is well-proportioned to the calcium content.
Goals
Bone Health 75.0
The use of highly bioavailable Calcium Hydroxyapatite at a decent dose is beneficial for bone health. However, the lack of Vitamin D3 and K2, crucial for absorption and bone mineralization, means it's not a complete bone health solution.
Heart Health 70.0
Calcium Hydroxyapatite is generally considered a good form. While vital for heart function, the absence of Vitamin K2, which helps prevent arterial calcification, limits its score for comprehensive cardiovascular support.
Joint Health 55.0
While good bone density indirectly supports joint integrity, calcium and phosphorus are not primary nutrients for joint cartilage or tissue repair. Its impact on joint health is secondary.
80 Value

Target-Mins Calcium Magnesium Complex With Vitamin D3

Country Life
4.7
(3912 ratings)
Offers a substantial 1000mg of Calcium Hydroxyapatite, the same excellent form as the original, along with phosphorus and the crucial Vitamin D3, at a competitive price per serving (31 cents), making it a significantly more complete solution for bone health.
85 Value

Calcium + Vitamin D

Swisse Ultiboost
4.6
(1270 ratings)
Delivers a high dose (1020mg) of well-absorbed Calcium Citrate with Vitamin D at a reasonable price per serving (19 cents), providing a superior balance of efficacy, dosage, and cost for comprehensive calcium supplementation compared to the original.
95 Value

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
While slightly higher in price per serving (25 cents), its inclusion of a high dose (1363mg) of excellent MCHA along with crucial Vitamin D3 and K2 offers unparalleled comprehensive support for bone and cardiovascular health, making it an exceptional value for its advanced formulation.
95 Performance

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
While the original has a good form, this alternative provides a higher dose of MCHA (1363mg) and crucially includes both Vitamin D3 and K2 (VitaMK7), which are essential co-factors for calcium absorption and proper deposition into bones and away from arteries.
85 Performance

Calcium + Vitamin D

Swisse Ultiboost
4.6
(1270 ratings)
Offers a high dose (1020mg) of Calcium Citrate, a highly absorbable form, and directly includes Vitamin D, making it a more comprehensive and effective supplement for overall bone health than the original which lacks D3.
90 Performance

Raw Calcium

Garden of Life Vitamin Code
4.6
(4135 ratings)
Provides a high dose (1100mg) of plant-derived algae calcium, known for excellent bioavailability and naturally occurring trace minerals, often accompanied by co-factors like D3 and K2 (typical for this product line), offering a more holistic approach to bone health.
65 Budget

Calcium 500 + D3

21st Century
4.8
(4030 ratings)
Offers the same 500mg elemental calcium dose and includes Vitamin D3 at a significantly lower price per serving (3 cents vs 17 cents), making it a more economical option for basic calcium and D3 intake.
65 Budget

Calcium 500+D3

21st Century
4.8
(5045 ratings)
Provides 500mg of calcium and D3 for just 2 cents per serving, representing a substantial cost saving compared to the original product, while still meeting the dosage.
70 Budget

Calcium (Carbonate Aspartate & Citrate) 500 mg

Swanson Premium Brand
4.8
(307 ratings)
Delivers 500mg of calcium, including the more bioavailable citrate form, at a much lower price per serving (4 cents), offering a more cost-effective option for a comparable calcium dose.
80 Value

Target-Mins Calcium Magnesium Complex With Vitamin D3

Country Life
4.7
(3912 ratings)
Offers a substantial 1000mg of Calcium Hydroxyapatite, the same excellent form as the original, along with phosphorus and the crucial Vitamin D3, at a competitive price per serving (31 cents), making it a significantly more complete solution for bone health.
85 Value

Calcium + Vitamin D

Swisse Ultiboost
4.6
(1270 ratings)
Delivers a high dose (1020mg) of well-absorbed Calcium Citrate with Vitamin D at a reasonable price per serving (19 cents), providing a superior balance of efficacy, dosage, and cost for comprehensive calcium supplementation compared to the original.
95 Value

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
While slightly higher in price per serving (25 cents), its inclusion of a high dose (1363mg) of excellent MCHA along with crucial Vitamin D3 and K2 offers unparalleled comprehensive support for bone and cardiovascular health, making it an exceptional value for its advanced formulation.
95 Performance

Calcium Bone Maker Complex with MCH-Cal and VitaMK7

Doctor's Best
4.7
(6735 ratings)
While the original has a good form, this alternative provides a higher dose of MCHA (1363mg) and crucially includes both Vitamin D3 and K2 (VitaMK7), which are essential co-factors for calcium absorption and proper deposition into bones and away from arteries.
85 Performance

Calcium + Vitamin D

Swisse Ultiboost
4.6
(1270 ratings)
Offers a high dose (1020mg) of Calcium Citrate, a highly absorbable form, and directly includes Vitamin D, making it a more comprehensive and effective supplement for overall bone health than the original which lacks D3.
90 Performance

Raw Calcium

Garden of Life Vitamin Code
4.6
(4135 ratings)
Provides a high dose (1100mg) of plant-derived algae calcium, known for excellent bioavailability and naturally occurring trace minerals, often accompanied by co-factors like D3 and K2 (typical for this product line), offering a more holistic approach to bone health.