Home/ Supplements/ Vitamin D/ Oyster Shell Calcium 500 mg + Vitamin D3

Oyster Shell Calcium 500 mg + Vitamin D3

product on market Tablet or Pill Pharbest Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Calcium and vitamin D3 are supported by strong evidence for maintaining bone density and supporting skeletal health. Vitamin D3 facilitates the absorption of calcium in the gut to optimize mineral utilization. Research indicates these nutrients are generally safe and effective for bone maintenance.

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

Label

Product Label

Label for Oyster Shell Calcium 500 mg + Vitamin D3
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
1000
Servings
Single Vitamin and Mineral
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

5 mcg (25% DV)
Within RDA (0.3× RDA) 608 studies (A:16, B:251)
Calcium
500 mg (38% DV)

Other Ingredients

Croscarmellose Sodium FD&C Blue #1 FD&C Yellow #5 Hypromellose Maltodextrin Magnesium Stearate Microcrystalline Cellulose Polyethylene Glycol Polyvinyl Alcohol Talc Titanium Dioxide
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Info

Product Information

Directions for Use

Directions: Take one tablet up to three times daily with food or as directed by your doctor. Children under 4 years, ask a doctor. It is recommended to take the tablet with full glass of water.

Warnings & Precautions

This package for household without young children

Tamper Evident: Do not use if safety seal under cap is broken or missing

Contains Shellfish

Warnings: If pregnant or breast-feeding, ask a health professional before use.

Package not child resistant. Keep out of the reach of children.

Additional Information

Manufactured in the USA

Compare to active ingredients of Os-Cal Calcium + D3

Store at room temperature. Keep tightly closed in a cool dry place.

Questions or comments? (866) 562-2756 (Mon-Fri 8AM to 4 PM EST)

Metadata

Product Details

UPC / SKU3 73057 36111 1
DSLD Entry Date2021-12-18
Product TypeSingle Vitamin and Mineral
FormTablet or Pill
BrandPharbest
DSLD ID264579
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.