Product Image

Coral Calcium 600 mg

Source Naturals
4.7
★ ★ ★ ★ ★
(394 ratings)
Calcium 420 mg
Product Image
Score76
A practical coral calcium capsule with vitamin D3 and a sensible calcium amount. It is simple and economical but uses a basic calcium form.
How scoring works
Quantity:120 Capsule(s) • (60 servings)
Goals:

Score 76

A practical coral calcium capsule with vitamin D3 and a sensible calcium amount. It is simple and economical but uses a basic calcium form.
How scoring works
$18.46($0.30 per serving)
iHerb
$ 18.46
Report prices

Analysis

The calcium amount is clearly separated from the larger coral mineral weight and fits a practical single dose. Vitamin D3 adds a useful absorption and bone-health cofactor.

Coral calcium relies more on digestion and stomach acid than citrate. The simple formula is easy to assess, though it does not offer a broad mineral matrix.

Magnesium, vitamin K, and collagen support are not included. The product suits users who want moderate calcium plus vitamin D rather than an all-in-one bone formula.

Who is it for
  • Adults wanting calcium with vitamin D3
  • Users seeking a moderate serving
  • People comfortable with coral-derived calcium
Best for
  • Basic calcium and vitamin D support
  • Moderate single-dose use
  • Simple capsule routines

Pros

  • Practical elemental calcium amount
  • Includes vitamin D3
  • Clear and simple formula

Cons

  • Coral calcium is less flexible than citrate
  • No magnesium
  • No vitamin K or collagen support

Warnings

  • Take the coral calcium with food if digestion or stomach acid is limited.
  • Separate calcium from thyroid medicine and tetracycline or quinolone antibiotics.
  • People with recurrent calcium stones should review total calcium intake before regular use.

Nutrient quality

80 Highest impact

Moderate calcium and vitamin D3 provide a coherent core without aggressive dosing. The less characterized coral source limits confidence in form quality.

Ingredient transparency

77 High impact

Core active amounts and the implied serving size are visible. The source composition, non-active ingredients, and directions remain incomplete.

Customer satisfaction

70 High impact

The aggregate rating is favorable and backed by a substantial review volume. No specific comments are available to assess recurring problems or real-world fit.

Value for money

74 High impact

A focused calcium and vitamin D3 combination provides fair utility. The premium cost and less defined calcium source weaken value.

Report analysis

Ingredients

IngredientAmount per serving
Vitamin D3 (Cholecalciferol)
 10 mcg
Calcium (Coral Calcium)
 420 mg
Coral Calcium
1.2 Gram(s)
Gluten Free Adults 18–50 Dairy Free
Report overview
Calcium (Coral Calcium) · 420 mg OverallScore86
C+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

Coral calcium provides a common mineral form with lower absorption potential than citrate or chelated options. The clearly stated 420 mg elemental dose fits the absorption-friendly serving range. A simple additive profile and low serving cost improve its practical appeal.

View ingredientView products
Loading alternative details
88 Performance

Calcium Hydroxyapatite Caps

NOW
Hydroxyapatite supplies a practical calcium amount with naturally paired phosphorus and clear dosing, giving broader bone-mineral support than a basic calcium-only formula. The supplied data omit complete directions and inactive ingredients.
85 Performance

Cal/Mag 500 mg/250 mg

NaturesPlus
Chelated calcium and magnesium provide balanced doses and strong form quality, adding a useful cofactor that many calcium-only products omit. The focused mineral formula does not include vitamin D or vitamin K.
82 Performance

Ultra BoneUp

Jarrow Formulas
Calcium, vitamin D3, magnesium, MK-7, silicon, boron, and cartilage collagen cover more bone-support pathways than a simple calcium product. Magnesium oxide and modest supporting amounts temper the formula, and vitamin K requires consistent intake for people using vitamin K antagonists.
84 Budget

600 Calcium Supplement

21st Century
The supplied serving cost is lower than the original, making it a genuine budget alternative. A straightforward calcium carbonate serving keeps the formula focused and exceptionally economical.
85 Budget

Calcium Carbonate

NOW
The supplied serving cost is lower than the original, making it a genuine budget alternative. The pure powder provides a substantial calcium amount with strong serving value and no unrelated actives.
84 Budget

Calcium 600 with Vitamin D3

Nature's Bounty
The supplied serving cost is lower than the original, making it a genuine budget alternative. Meaningful calcium and vitamin D3 amounts create a focused bone-support option with strong serving value.
88 Value

Calcium Citrate Pure Powder

NOW
A simple powder delivers a substantial, clearly disclosed calcium citrate amount with strong absorption flexibility and serving value. That balance makes it a practical value-focused alternative. Vitamin D, vitamin K, and magnesium are not included.
82 Value

Calcium Citrate

Nature's Way
Citrate and malate improve absorption flexibility while keeping the supplemental amount practical and the serving cost favorable. That balance makes it a practical value-focused alternative. Missing excipient and full-use details reduce transparency.
84 Value

Calcium Citrate +D3 Petites

21st Century
Calcium citrate and vitamin D3 combine useful bone-support ingredients in a practical serving with strong value. That balance makes it a practical value-focused alternative. The supplied data do not include excipient details or complete directions.
Report alternatives