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Coral Calcium 1000 mg

4.8
★ ★ ★ ★ ★
(6609 ratings)
Calcium 350 mg
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Score81
A large 250-serving supply provides a moderate calcium amount in one capsule. The coral source and lack of bone cofactors keep it behind more flexible calcium products.
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Capsule
Quantity:250 Capsule(s) • (250 servings)
Goals:

Score 81

A large 250-serving supply provides a moderate calcium amount in one capsule. The coral source and lack of bone cofactors keep it behind more flexible calcium products.
How scoring works

Also available as

1 option
100 servings Calcium 350 mg • 100 Capsule(s) • 100 servings $11.60 ($0.11 per serving)
$23.10($0.09 per serving)
iHerb
$ 24.49
Vitacost
$ 26.19
Daily Vita
$ 23.10
iHerb
$ 24.49
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Analysis

Each capsule supplies 350 mg calcium from 1 gram of fossilized coral calcium. The 250-serving bottle is well suited to users who already know they tolerate this source.

The calcium amount is useful, but the coral source does not establish better absorption or bone support from the provided information. Citrate and chelated calcium forms may be easier choices for users with specific absorption or tolerance needs.

The single-ingredient design is easy to combine with diet and other supplements. Vitamin D, magnesium, and vitamin K must be planned separately when needed.

Who is it for
  • Regular users of coral calcium
  • Adults seeking one-capsule calcium
  • People who value a long supply
Best for
  • Long-term focused calcium use
  • Moderate calcium supplementation
  • Simple one-capsule routines

Pros

  • Offers 250 servings
  • Provides 350 mg calcium
  • Clearly names the coral source
  • Requires one capsule

Cons

  • Coral calcium is less preferred than citrate or chelated forms
  • Includes no vitamin D or magnesium
  • No special advantage of the coral source is established

Warnings

  • Calcium can reduce absorption of levothyroxine and tetracycline or quinolone antibiotics; separate dosing according to prescriber or pharmacist instructions.
  • Fossilized coral is a marine-derived source and may not suit users avoiding such materials.

Nutrient quality

78 High impact

Coral calcium is a usable source but is less predictable than clearly defined citrate or chelated calcium. The dose is practical, but the coral source offers less form certainty and little added benefit.

Ingredient transparency

83 Highest impact

The elemental calcium amount and coral-source weight are both stated. No proprietary blend hides the doses, but full directions and inactive ingredients are not supplied.

Customer satisfaction

74 High impact

The supplied average is exceptionally strong, with very large response volume. Complaint patterns and purpose-related experiences are not supplied.

Value for money

88 Highest impact

Formula quality generally supports the asking price despite some limitations. Each serving offers excellent practical value for its useful active dose.

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Ingredients

IngredientAmount per serving
Calcium (Coral Calcium)
 350 mg
fossilized Coral Calcium
1 Gram(s)
Gluten Free Adults 18–50 Kosher Dairy Free
Report overview
Calcium (Coral Calcium) · 350 mg OverallScore79
C+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value

Coral calcium is a common source with lower expected absorption than citrate or fully chelated forms. The 350 mg elemental amount is clearly stated but may require another daily source for higher calcium needs. The large supply keeps the single-capsule serving inexpensive.

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88 Performance

Calcium Hydroxyapatite Caps

NOW
<p>Hydroxyapatite supplies a practical calcium amount with naturally paired phosphorus in a simple capsule. Compared with Coral Calcium 1000 mg, its calcium form and supporting nutrients may be a better fit where coral sourcing remains less informative than a named mineral salt, while the extra coral weight does not establish added benefit, while clear dosing, strong form quality, and favorable serving value make the formula well suited to routine bone support.</p>
85 Performance

Cal/Mag 500 mg/250 mg

NaturesPlus
<p>Chelated calcium and magnesium provide a focused, balanced mineral formula with strong form quality. Compared with Coral Calcium 1000 mg, its calcium form and supporting nutrients may be a better fit where coral sourcing remains less informative than a named mineral salt, while the extra coral weight does not establish added benefit, while a simple one-serving format and economical cost make it one of the better value profiles in this set.</p>
83 Performance

600 + D3 plus Minerals

21st Century
<p>Calcium carbonate and vitamin D3 provide a direct, economical base for bone maintenance. Compared with Coral Calcium 1000 mg, its calcium form and supporting nutrients may be a better fit where coral sourcing remains less informative than a named mineral salt, while the extra coral weight does not establish added benefit, while supportive minerals broaden the formula, though oxide forms and small secondary doses keep ingredient quality basic.</p>
85 Budget

600+D3

21st Century
<p>Calcium carbonate and vitamin D3 provide a focused bone-support pairing at exceptionally accessible value. Its lower recurring cost than Coral Calcium 1000 mg makes it a more economical calcium option, while the calcium amount is reasonably sized, though carbonate works best with food and offers less flexibility than citrate. Calcium should be separated from levothyroxine and tetracycline or quinolone antibiotics because it can reduce their absorption.</p>
85 Budget

Calcium Carbonate

NOW
<p>The pure powder supplies a substantial calcium amount with excellent serving value and no unrelated actives. Its lower recurring cost than Coral Calcium 1000 mg makes it a more economical calcium option, while calcium carbonate is less flexible than citrate because food and stomach acid aid absorption.</p>
84 Budget

Calcium 600 with Vitamin D3

Nature's Bounty
<p>Calcium and vitamin D3 form a focused, meaningfully dosed bone-support combination with strong serving value. Its lower recurring cost than Coral Calcium 1000 mg makes it a more economical calcium option, while calcium carbonate is best taken with food, and the formula does not cover magnesium or vitamin K.</p>
85 Value

Cal/Mag Caps

NaturesPlus
<p>Soy amino acid chelates provide a focused calcium-magnesium formula with balanced doses and strong form quality. Compared with Coral Calcium 1000 mg, its calcium profile offers a practical quality-to-cost trade-off despite not costing less, while good ratings and economical servings support solid value, though the review base is smaller than leading products.</p>
88 Value

Calcium Citrate Pure Powder

NOW
<p>Calcium citrate supplies a substantial, well-absorbed dose in a simple powder with clear active disclosure. Compared with Coral Calcium 1000 mg, its calcium profile offers a practical quality-to-cost trade-off despite not costing less, while the focused formula offers strong value but does not provide vitamin D, vitamin K, or magnesium.</p>
82 Value

Calcium Citrate

Nature's Way
<p>Citrate and malate improve absorption quality within the mixed calcium formula. Compared with Coral Calcium 1000 mg, its calcium profile offers a practical quality-to-cost trade-off despite not costing less, while active doses are clear, while missing excipient and full use details limit transparency.</p>
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