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Calcium Citrate & Vitamin D

Swanson
4.8
★ ★ ★ ★ ★
(960 ratings)
Calcium 630 mg
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Score82

A strong, clean calcium citrate and D3 formula whose full serving is best considered as divided intake.

How scoring works
Quantity:250 Tablet(s) • (125 servings)
Goals:
Bone Health

Score 82

A strong, clean calcium citrate and D3 formula whose full serving is best considered as divided intake.

How scoring works
$18.19($0.14 per serving)
iHerb
$ 18.19
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Analysis

The citrate form is practical for users with lower stomach acid and does not require the same meal dependence as carbonate. Vitamin D3 supports absorption and gives the formula a clear bone-health rationale.

Six hundred thirty milligrams is a substantial calcium amount and may be better split rather than taken at once. The two-actives design is coherent and avoids token additions.

The tablets suit users seeking focused calcium and vitamin D rather than a comprehensive skeletal blend. Magnesium, vitamin K2, trace minerals, and protein-matrix nutrients remain outside the formula.

Who is it for
  • Adults seeking calcium citrate
  • Users with lower stomach acid
  • People filling a substantial calcium gap
Best for
  • Bone mineral support
  • Calcium plus vitamin D supplementation
  • Citrate-based calcium intake

Pros

  • Uses calcium citrate
  • Includes vitamin D3
  • Fully disclosed amounts
  • Focused two-active formula

Cons

  • Full serving may be better divided
  • No magnesium
  • No vitamin K2
  • No protein-matrix support

Warnings

  • Calcium can reduce absorption of levothyroxine, bisphosphonates, tetracycline antibiotics, and quinolone antibiotics; separate doses as directed.
  • People with high blood calcium or recurrent calcium-containing kidney stones should consider total calcium intake before use.

Nutrient quality

89 Highest impact

<p>Calcium citrate is a well-absorbed form that does not depend heavily on stomach acid. The 630 mg serving is slightly above the usual absorption-focused amount and may work better when divided.</p>.

Ingredient transparency

81 Highest impact

<p>Active ingredients generally have stated amounts and no proprietary blend hides the doses. Missing other ingredients and complete intake directions leave important label details unresolved.</p>.

Customer satisfaction

63 Moderate impact

<p>The supplied average rating is strong and the rating volume provides a useful aggregate signal. No comment-level evidence is provided to assess recurring complaints or confirm how experience matches the intended purpose.</p>.

Value for money

93 Highest impact

<p>The active amount and formula quality support favorable serving value. The supplied formula is not inflated by obvious low-value extras.</p>.

Report analysis

Goals

Bone Health
Impact
Highest effect
A Goal FitA- Strength of SupportB- CoverageA+ Formula Quality

Calcium citrate and vitamin D3 directly address mineral supply and calcium absorption. The focused pair is highly relevant to bone health, though it lacks magnesium, vitamin K, and protein-matrix support.

Calcium is supplied at a substantial amount in an absorbable form, but taking the full serving at once may reduce fractional absorption. The simple formula is coherent, transparent, and free from unnecessary padding.

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Ingredients

IngredientAmount per serving
Vitamin D (Cholecalciferol)
 12.5 mcg
Calcium (Calcium Citrate)
 630 mg
Adults 18–50
Report overview
Calcium (Calcium Citrate) · 630 mg OverallScore80
A- Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyA+ Value

The dedicated supplement clearly uses well-absorbed calcium citrate. The 630 mg serving may absorb less efficiently when taken all at once. The serving cost is very low for a clearly identified citrate source. Calcium can reduce absorption of levothyroxine and tetracycline or quinolone antibiotics, so users should separate doses according to their prescription directions.

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