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Oyster Shell Calcium 500 mg

product on market Tablet or Pill Nature's Blend 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 mineral absorption. While these ingredients are well-researched, the overall evidence coverage for this specific formulation is limited. The profile maintains a high safety score.

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

Label

Product Label

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

Label Data

1 Tablet(s)
Serving Size
200
Servings
Single Vitamin and Mineral
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

10 mcg (50% DV)
Within RDA (0.7× RDA) 608 studies (A:16, B:251)
Calcium
500 mg (38% DV)

Other Ingredients

Calcium Carbonate Modified Cellulose Maltodextrin Acacia Gum Croscarmellose Sodium Magnesium Stearate Triacetin Polydextrose Titanium Dioxide Silicon Dioxide Starch Medium Chain Triglyceride Calcium Phosphate DL-Alpha-Tocopherol Blue #1 Lake Riboflavin
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Info

Product Information

Directions for Use

Directions: As a dietary supplement, take one tablet daily, preferably with a meal or as directed by your healthcare professional.

Warnings & Precautions

Keep out of the reach of children.

Double safety sealed for your protection. Do not use if either seal is broken or missing.

Warning: Consuming this product can expose you to lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.

Formulation Notes

Gluten free. No preservatives, artificial flavors, wheat, yeast, or corn added.

This product is manufactured under strict quality control guidelines; therefore, purity and label potency are guaranteed.

Made in USA & American owned

Oyster Shell Calcium 500 mg with vitamin D3

Additional Information

Store in a cool, dry place.

Questions/Comments call 1-800-682-9862

Metadata

Product Details

UPC / SKU0 79854 03163 8
DSLD Entry Date2024-09-25
Product TypeSingle Vitamin and Mineral
FormTablet or Pill
BrandNature's Blend
DSLD ID314613
Data Updated2026-04-11
Research

Research Evidence

849
Research Sources
56
Avg Quality
450
Meta Analysis
152
Rct
137
Systematic Review
73
Clinical Trial
11
Regulatory Source
7
Other
7
Guideline
3
Openfda Safety
2
Cochrane Review
2
Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025 PubMed DOI
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008 PubMed DOI
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019 PubMed DOI
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021 PubMed DOI
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
View all evidence for Electrolytes →
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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.