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Calcium Citrate Plus Magnesium

4.8
★ ★ ★ ★ ★
(1312 ratings)
Calcium 300 mg
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Score85
Calcium citrate is the main strength, with magnesium adding useful breadth. Magnesium oxide and the absence of vitamins D and K limit the formula.
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Capsule
Quantity:150 Capsule(s) • (75 servings)
Goals:

Score 85

Calcium citrate is the main strength, with magnesium adding useful breadth. Magnesium oxide and the absence of vitamins D and K limit the formula.
How scoring works
$13.39($0.17 per serving)
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$ 13.39
iHerb
$ 13.39
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Analysis

Calcium citrate supplies a moderate amount that can help close a dietary gap without relying heavily on stomach acid. Added magnesium makes the formula broader than calcium alone and may support normal muscle and bone function.

Magnesium oxide is typically less well absorbed than better-solubilized magnesium forms and may be more likely to loosen stools. The formula also omits vitamin D and vitamin K, so it does not cover several common bone-support pathways.

The capsule format and clearly named mineral forms make routine use easy to judge. It fits people who want calcium plus some magnesium, but those specifically seeking magnesium may prefer a different form.

Who is it for
  • Adults seeking calcium with some added magnesium
  • People who prefer citrate over carbonate
  • Users comfortable with a multi-capsule mineral routine
Best for
  • Moderate calcium supplementation
  • Combined calcium and magnesium intake
  • Use when stomach acid is low

Pros

  • Calcium citrate offers flexible absorption
  • Includes magnesium alongside calcium
  • Both mineral forms and amounts are disclosed

Cons

  • Magnesium oxide is a less desirable magnesium form
  • No vitamin D to complement calcium
  • No vitamin K 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.
  • Magnesium oxide can loosen stools or cause stomach discomfort in sensitive users.

Nutrient quality

88 Highest impact

Calcium citrate is a strong form, but magnesium oxide lowers the formula’s absorption quality. Both amounts are useful for basic support without appearing excessive.

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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

72 High impact

The aggregate rating is strong and supported by a large feedback volume. Specific experience details are missing, so recurring problems and purpose fit remain uncertain.

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Value for money

93 Highest impact

A useful calcium amount and added magnesium provide strong quality for the accessible cost. Serving value is strong for a two-mineral formula.

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Ingredients

IngredientAmount per serving
Calcium (Calcium Citrate)
 300 mg
Magnesium (Magnesium Oxide)
 150 mg
Adults 18–50
Report overview
Calcium (Calcium Citrate) · 300 mg OverallScore87
A- Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ 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 Plus Magnesium, its calcium form and supporting nutrients may be a better fit where magnesium oxide is less absorbable than better magnesium forms, so the pairing is uneven in quality, 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 Plus Magnesium, its calcium form and supporting nutrients may be a better fit where magnesium oxide is less absorbable than better magnesium forms, so the pairing is uneven in quality, 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 Plus Magnesium, its calcium form and supporting nutrients may be a better fit where magnesium oxide is less absorbable than better magnesium forms, so the pairing is uneven in quality, 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 Plus Magnesium 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 Plus Magnesium 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 Plus Magnesium 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 Plus Magnesium, its calcium profile offers a practical quality-to-cost trade-off despite not costing less, 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 Plus Magnesium, 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>
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 Plus Magnesium, 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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