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CoraCal 1000 mg

product on market Capsule 21st Century Safety: 87/100
87/100

This product is generally safe

  • Magnesium: 500mg is 1.4× the Tolerable Upper Intake Level (350mg)
  • 67% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Calcium and vitamin D3 have strong evidence for supporting bone density and mineral absorption. Magnesium further aids in bone health and muscle function through moderate research evidence. These ingredients collectively support skeletal maintenance and metabolic processes.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Magnesium: 500mg is 1.4× the Tolerable Upper Intake Level (350mg)

Label

Product Label

Label for CoraCal 1000 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
67%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

10 mcg (50% DV)
Within RDA (0.7× RDA) 608 studies (A:16, B:251)
Calcium
1000 mg (77% DV)
500 mg (119% DV)
Exceeds UL by 1.4× (UL: 350 mg) 316 studies (A:8, B:159)

Other Ingredients

Gelatin Magnesium Stearate Magnesium Silicate Maltodextrin Cellulose Contains Less Than 2% of
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a calcium supplement, adults take two (2) capsules with any meal, twice daily or as directed by a healthcare provider. Do not exceed recommended dosage.

Warnings & Precautions

Do not exceed recommended dosage.

Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.

Stop use and contact a physician if adverse reactions occur.

Keep out of reach of children.

Do not use if product appears to be tampered with or seal is broken.

Formulation Notes

Coral Calcium has the ideal calcium to magnesium ratio of 2:1 that supports bone health and heart, nerve and muscle function.

No added Salt, Yeast, Artificial Flavors or Colors. Gluten Free.

Authentic Okinawa Coral Calcium

A Balanced Source of Calcium & Magnesium

Additional Information

No live coral was harmed in the harvesting of 21st Century's Eco-Friendly Coral Calcium.

Individual results may vary.

Store at room temperature.

Guaranteed quality Laboratory tested

Over 72 trace minerals

Eco-friendly

Metadata

Product Details

UPC / SKU7 40985 22773 2
DSLD Entry Date2019-09-24
Product TypeOther Combinations
FormCapsule
Brand21st Century
DSLD ID206542
Data Updated2026-04-11
Research

Research Evidence

872
Research Sources
53
Avg Quality
309
Meta Analysis
309
Clinical Trial
111
Rct
71
Systematic Review
55
Guideline
4
Cochrane Review
4
Regulatory Source
2
Other
2
Narrative Review
2
Observational
1
Openfda Safety
A Vitamin D and vitamin D analogues for preventing fractures associated with involutional and post-menopausal osteoporosis
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D and vitamin D analogues for preventing fractures in post-menopausal women and older men
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D supplementation for prevention of cancer in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Interventions for preventing falls in older people in care facilities and hospitals
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Drugs for preventing lung cancer in healthy people
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A High prevalence of vitamin D deficiency in Asia: A systematic review and meta-analysis
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A The effect of vitamin D supplementation on depressive symptoms in adults: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A Interventions for preventing falls in older people living in the community
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
View all evidence for Vitamin D →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.