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Calcium Aspartate

4.7
★ ★ ★ ★ ★
(222 ratings)
Calcium 200 mg
Product Image
Score85
A clear calcium aspartate form and one-capsule serving suit small calcium gaps. The modest amount and lack of cofactors limit comprehensive bone support.
How scoring works
Capsule
Quantity:60 Capsule(s) • (60 servings)
Goals:
Bone Health

Score 85

A clear calcium aspartate form and one-capsule serving suit small calcium gaps. The modest amount and lack of cofactors limit comprehensive bone support.
How scoring works
$10.79($0.17 per serving)
iHerb
$ 10.79
iHerb
$ 10.79
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Analysis

One capsule provides 200 mg calcium from 1 gram of anhydrous calcium aspartate. The defined form and simple formula make the product easy to compare with other calcium options.

The amount is appropriate for topping up intake or dividing calcium across the day. It is too low to close a large gap on its own, and the product provides no supporting vitamin D, magnesium, or vitamin K.

Sixty servings and one-capsule dosing are convenient. The strongest fit is a user who values a moderate, clearly identified calcium amount rather than a complete bone formula.

Who is it for
  • Adults needing a modest calcium top-up
  • People who prefer calcium aspartate
  • Users dividing calcium across the day
Best for
  • Small calcium gaps
  • One-capsule dosing
  • Focused single-nutrient use

Pros

  • Clearly identifies calcium aspartate
  • Requires one capsule
  • Provides 60 servings
  • Supports easy divided dosing

Cons

  • Provides only 200 mg elemental calcium
  • Includes no vitamin D or magnesium
  • Not designed for a large calcium shortfall

Warnings

  • Calcium can reduce absorption of levothyroxine and tetracycline or quinolone antibiotics; separate dosing according to prescriber or pharmacist instructions.

Nutrient quality

88 Highest impact

Calcium aspartate is a chelated form with good absorption potential. The well-characterized form is a strength, while the modest amount may not close a large dietary gap.

Ingredient transparency

87 Highest impact

The label separates elemental calcium from the compound weight. No proprietary blend hides the doses, but full directions and inactive ingredients are not supplied.

Customer satisfaction

67 High impact

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

Value for money

93 Highest impact

Formula quality appears strong for the asking price. Each serving offers fair value for the active dose supplied.

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Goals

Bone Health
Bone Health
Impact
High effect
B+ Goal FitB- Strength of SupportD CoverageA Formula Quality
Calcium · 1000 mg

Calcium aspartate supplies a well-disclosed, absorbable structural mineral. The 200 mg elemental amount is useful but modest for someone relying on the product as a primary calcium source.

The formula is intentionally narrow and does not include vitamin D, vitamin K, magnesium, or collagen. Its simple design and clear elemental yield provide good depth for a focused calcium supplement.

Study evidence
Calcium Supportive 144 studies

Ingredients

IngredientAmount per serving
Calcium (Calcium Aspartate)
 200 mg
Calcium Aspartate Anhydrous
1000 mg
Adults 18–50
Report overview
Calcium (Calcium Aspartate) · 200 mg OverallScore93
A+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value

Chelated calcium aspartate offers good absorption potential, and the label separates elemental calcium from compound weight. The 200 mg serving provides a useful moderate amount but may require divided intake for higher needs. No artificial colors, sweeteners, titanium dioxide, or high sugar are disclosed in the supplied data, while the low serving cost provides excellent collection value.

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79 Performance

Calcium Mag & D Complex

Nature's Way
<p>Mixed citrate, malate, and aspartate forms partly offset the less favorable carbonate and oxide components. Compared with Calcium Aspartate, its calcium form and supporting nutrients may be a better fit where the dose is modest for a primary calcium source but offers good value for topping up dietary intake, while calcium and magnesium are useful, while the vitamin D amount is too modest to add much to an otherwise coherent bone formula.</p>
88 Performance

Calcium Hydroxyapatite Caps

NOW
<p>Hydroxyapatite supplies a practical calcium amount with naturally paired phosphorus in a simple capsule. Compared with Calcium Aspartate, its calcium form and supporting nutrients may be a better fit where the dose is modest for a primary calcium source but offers good value for topping up dietary intake, 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 Calcium Aspartate, its calcium form and supporting nutrients may be a better fit where the dose is modest for a primary calcium source but offers good value for topping up dietary intake, while a simple one-serving format and economical cost make it one of the better value profiles in this set.</p>
81 Budget

Calcium 500 mg with Vitamin D3

Nature's Bounty
<p>A practical oyster-derived calcium amount and vitamin D3 provide focused bone support with exceptional affordability. Its lower recurring cost than Calcium Aspartate makes it a more economical calcium option, while the likely carbonate source is less flexible than citrate, and duplicate vitamin D wording reduces label clarity.</p>
82 Budget

Calcium 500 + D3

21st Century
<p>Oyster-shell calcium is a basic source with less predictable quality than clearly identified citrate. Its lower recurring cost than Calcium Aspartate makes it a more economical calcium option, while active doses are clear, while missing excipient and full use details limit transparency.</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 Calcium Aspartate makes it a more economical calcium option, while calcium carbonate is less flexible than citrate because food and stomach acid aid absorption.</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 Aspartate, 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 Calcium Aspartate, its calcium profile and lower recurring cost create a more favorable quality-to-cost balance, 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 Calcium Aspartate, its calcium profile and lower recurring cost create a more favorable quality-to-cost balance, while active doses are clear, while missing excipient and full use details limit transparency.</p>
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Calcium supplementation during pregnancy and maternal and offspring bone health: a systematic review and meta-analysis.
    Tihtonen K; Korhonen P; Isojärvi J; Ojala R; Ashorn U; Ashorn P; Tammela O · Annals of the New York Academy of Sciences · 2022
    Meta-analysis1,566 participants7 studies pooledBone Health forCalcium
  2. Calcium supplementation and bone mineral density in postmenopausal women using estrogen replacement therapy.
    Haines CJ; Chung TK; Leung PC; Hsu SY; Leung DH · Bone · 1995
    Randomized trialBone Health forCalcium
  3. Calcium supplementation provides an extended window of opportunity for bone mass accretion after menarche.
    Rozen GS; Rennert G; Dodiuk-Gad RP; Rennert HS; Ish-Shalom N; Diab G; Raz B; Ish-Shalom S · The American journal of clinical nutrition · 2003
    Randomized trial100 participantsBone Health forCalcium
  4. Relationship between bone mineral density changes and risk of fractures among patients receiving calcium with or without vitamin D supplementation: a meta-regression.
    Rabenda V; Bruyère O; Reginster JY · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2011
    Meta-analysis47,365 participants15 studies pooledBone Health forCalcium
  5. Treatment with alendronate plus calcium, alendronate alone, or calcium alone for postmenopausal low bone mineral density.
    Bonnick S; Broy S; Kaiser F; Teutsch C; Rosenberg E; DeLucca P; Melton M · Current medical research and opinion · 2007
    Randomized trial701 participantsBone Health forCalcium
  6. What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta-analysis.
    Manoj P; Derwin R; George S · International journal of older people nursing · 2023
    Meta-analysis12,620 participants7 studies pooledBone Health forCalcium
  7. Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
    Storm D; Eslin R; Porter ES; Musgrave K; Vereault D; Patton C; Kessenich C; Mohan S; Chen T; Holick MF; Rosen CJ · The Journal of clinical endocrinology and metabolism · 1998
    Randomized trial60 participantsBone Health forCalcium
  8. The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
    Prince R; Devine A; Dick I; Criddle A; Kerr D; Kent N; Price R; Randell A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 1995
    Randomized trial168 participantsBone Health forCalcium
  9. The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
    Rajatanavin R; Chailurkit L; Saetung S; Thakkinstian A; Nimitphong H · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial404 participantsBone Health forCalcium
  10. Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
    Bonjour JP; Carrie AL; Ferrari S; Clavien H; Slosman D; Theintz G; Rizzoli R · The Journal of clinical investigation · 1997
    Randomized trial149 participantsBone Health forCalcium