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Calcium (Citrate)

4.9
★ ★ ★ ★ ★
(81 ratings)
Calcium 300 mg
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Score82
A moderate calcium citrate serving offers flexible absorption and straightforward dosing. The trade-off is a narrow formula without complementary bone-support nutrients.
How scoring works
Capsule
Quantity:180 Capsule(s) • (90 servings)
Goals:

Score 82

A moderate calcium citrate serving offers flexible absorption and straightforward dosing. The trade-off is a narrow formula without complementary bone-support nutrients.
How scoring works
$32.50($0.36 per serving)
Vitacost
$ 32.50
Pure Formulas
$ 32.50
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Analysis

Calcium citrate is a useful form for people who want calcium that does not depend heavily on stomach acid. The moderate amount can contribute meaningfully to daily intake without putting an unusually large quantity into one serving.

The focused formula makes the active ingredient and its role easy to understand. Higher calcium needs may require another serving or more calcium from food, and there is no vitamin D, vitamin K, or magnesium in the supplied formula.

Capsules may suit people who prefer to avoid a large mineral tablet. It fits best as a targeted calcium top-up rather than an all-in-one bone formula.

Who is it for
  • Adults whose diet needs a moderate calcium top-up
  • People with low stomach acid who prefer citrate
  • Users seeking a focused calcium-only capsule
Best for
  • Flexible use with or without food
  • Moderate supplemental calcium intake
  • Simple ingredient disclosure

Pros

  • Calcium citrate is less dependent on stomach acid
  • Moderate serving is practical to combine with dietary calcium
  • Single active ingredient is easy to evaluate

Cons

  • May be too little for people with a large dietary shortfall
  • No vitamin D to support calcium use
  • No vitamin K or magnesium for broader bone support

Warnings

  • Calcium can reduce levothyroxine absorption, so follow the medication instructions for spacing the doses.
  • Separate calcium from tetracycline or quinolone antibiotics by the interval stated by the prescriber or pharmacist.
  • Supplemental calcium can cause constipation or bloating; dividing intake may improve tolerance when the label permits it.

Nutrient quality

90 Highest impact

Calcium citrate provides a well-absorbed form and a useful maintenance amount. The single-ingredient design is focused, though it does not include bone-supporting cofactors.

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Ingredient transparency

85 Highest impact

Active amounts and serving counts are mostly clear from the supplied label facts. Missing non-active ingredients and complete directions leave practical disclosure gaps.

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Customer satisfaction

68 High impact

The aggregate rating is strong and based on a limited feedback volume. Specific experience details are missing, so recurring problems and purpose fit remain uncertain.

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Value for money

82 Highest impact

The well-absorbed citrate form provides solid quality for the cost. Serving value is reasonable for a focused premium calcium supplement.

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Ingredients

IngredientAmount per serving
Calcium (Calcium Citrate)
 300 mg
Gluten Free Adults 18–50
Report overview
Calcium (Calcium Citrate) · 300 mg OverallScore83
A- Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyB+ Value

Calcium citrate offers reliable absorption even when stomach acid is low. The 300 mg serving provides a useful amount but may require another daily dose for higher needs. Calcium can reduce absorption of levothyroxine and tetracycline or quinolone antibiotics, so doses should be separated.

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88 Performance

Calcium Citrate Pure Powder

NOW
<p>Calcium citrate supplies a substantial, well-absorbed dose in a simple powder with clear active disclosure. Compared with Calcium (Citrate), its calcium form and supporting nutrients may be a better fit where the serving may need to be combined with dietary calcium or divided supplementation for higher needs, while the focused formula offers strong value but does not provide vitamin D, vitamin K, or magnesium.</p>
82 Performance

Calcium Citrate

Nature's Way
<p>Citrate and malate improve absorption quality within the mixed calcium formula. Compared with Calcium (Citrate), its calcium form and supporting nutrients may be a better fit where the serving may need to be combined with dietary calcium or divided supplementation for higher needs, while active doses are clear, while missing excipient and full use details limit transparency.</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 Calcium (Citrate), its calcium form and supporting nutrients may be a better fit where the serving may need to be combined with dietary calcium or divided supplementation for higher needs, while a simple one-serving format and economical cost make it one of the better value profiles in this set.</p>
83 Budget

Citracal Petites Calcium Citrate +D3

Bayer Citracal
<p>A long-supply calcium formula pairs a moderate calcium amount with vitamin D3 in a compact serving. Its lower recurring cost than Calcium (Citrate) makes it a more economical calcium option, while the calcium source is not explicit in the supplied ingredient details, which limits confidence in its claimed citrate form.</p>
82 Budget

Calcium Citrate 600 mg

Spring Valley
<p>A simple calcium product provides a meaningful amount and a long supply at low daily cost. Its lower recurring cost than Calcium (Citrate) makes it a more economical calcium option, while the supplied ingredient details do not confirm the citrate form named in the product title, limiting absorption confidence.</p>
82 Budget

Calcium (Carbonate Aspartate & Citrate) 500 mg

Swanson Premium Brand
<p>A mixed calcium-salt formula provides a useful elemental serving, with citrate improving absorption flexibility. Its lower recurring cost than Calcium (Citrate) makes it a more economical calcium option, while repeated form amounts make the contribution of each salt unclear, despite strong practical value.</p>
88 Value

Calcium Hydroxyapatite Caps

NOW
<p>Hydroxyapatite supplies a practical calcium amount with naturally paired phosphorus in a simple capsule. Compared with Calcium (Citrate), its calcium profile and lower recurring cost create a more favorable quality-to-cost balance, while clear dosing, strong form quality, and favorable serving value make the formula well suited to routine bone support.</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 Calcium (Citrate), its calcium profile and lower recurring cost create a more favorable quality-to-cost balance, while good ratings and economical servings support solid value, though the review base is smaller than leading products.</p>
85 Value

600+D3

21st Century
<p>Calcium carbonate and vitamin D3 provide a focused bone-support pairing at exceptionally accessible value. Compared with Calcium (Citrate), its calcium profile and lower recurring cost create a more favorable quality-to-cost balance, 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>
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