Oyster Shell Calcium 500 mgnone

Single Vitamin & Mineral

Brand: Nature's Blend

Tablet or PillSingle Vitamin and MineralOn Market

Functions

Click to view full label

Net Contents

200 Tablet(s)

Serving Size

1 Tablet(s)

Servings Per Container

200

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 79854 03163 8

Product Version

Stock No. 3163 F19 NVC# 54629-037702

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

2% Daily Value Coverage

2 ingredients report an established %DV per serving.

1Dietary Attributes

Label states: Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Free From

  • Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1 Tablet(s) · 1 per day

IngredientAmount Per Serving% Daily Value
Vitamin D3(Cholecalciferol)10 mcg50%
Calcium(Oyster Shell)500 mg38%

Not Present

Other Ingredients

Calcium CarbonateModified CelluloseMaltodextrinAcacia GumCroscarmellose SodiumMagnesium StearateTriacetinPolydextroseTitanium DioxideSilicon DioxideStarchMedium Chain TriglycerideCalcium PhosphateDL-Alpha-TocopherolBlue #1 LakeRiboflavin

Target Groups

Adult (18 - 50 Years)Gluten Free

Label Claims

NutrientAll Other

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

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

Warnings & Precautions

Precautions re: Children

Keep out of the reach of children.

Precautions re: All Other

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

Precautions re: All Other

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.

Storage

Storage

Store in a cool, dry place.

Formulation

Formulation re: Does NOT Contain

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

Formulation re: Other

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

Formulation re: Other

Made in USA & American owned

Formula re: Contains

Oyster Shell Calcium 500 mg with vitamin D3

FDA Statements

FDA Statement of Identity

Dietary Supplement

Other Label Statements

General Statements: All Other Content

Questions/Comments call 1-800-682-9862

Manufacturer & Distributor

Manufacturer

National Vitamin Company

Casa Grande, AZ, 85122

1-800-682-9862

Market Reference

$3.94 – $57.49· 40 listings
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  • Rugby Oyster Shell Calcium 500mg Tablets Supports Strong Bones & Teeth Health 60 Count

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Where to Buy Locally

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Research & Studies

  • Marine shells: Potential opportunities for extraction of functional and health-promoting materials

    Y Hou, A Shavandi, A Carne, AA Bekhit… - Critical Reviews in …, 2016 - Taylor & Francis

    … to that of calcium phosphate prepared from commercial calcium carbonate. Generally, oyster shell produced lower yields of calcium phosphate than Corbicula shell.Citation [127,128] …

    2016184 citations
  • Research progress on applications of calcium derived from marine organisms

    Y Xu, J Ye, D Zhou, L Su - Scientific reports, 2020 - nature.com

    … health, especially bone health. Marine biological … Oyster shell calcium powder can improve the chewiness and springiness of restructured ham 94 . Calcium-rich shrimp and crab shells …

    202092 citations
  • Lead content of calcium supplements

    EA Ross, NJ Szabo, IR Tebbett - Jama, 2000 - jamanetwork.com

    … by our medical center (University of Florida, Gainesville). The … (ie, oyster shell) derivatives when used in the calcium dose … Products not labeled as being of natural or oyster shell origin …

    2000107 citations
  • Shell waste management and utilization: mitigating organic pollution and enhancing sustainability

    N Topić Popović, V Lorencin, I Strunjak-Perović… - Applied Sciences, 2023 - mdpi.com

    … supplementation [5]. The CaCO 3 extracted from oyster shells is also used as a food supplement … can be successfully turned into mixed-material medical radiation shields. The shielding …

    2023232 citations
  • Antimicrobial Properties of Thermally Processed Oyster Shell Powder for Use as Calcium Supplement

    S Ahn, S Lee, S Lim - Foods, 2025 - mdpi.com

    … Except for coral-derived calcium supplements, all oyster shell-derived calcium materials … the production of calcium-based materials derived from oyster shells using patented processing …

    20257 citations
  • Increase of bone mineral density by calcium supplement with oyster shell electrolysate

    T Fujita, M Fukase, H Miyamoto, T Matsumoto, T Ohue - Bone and mineral, 1990 - Elsevier

    … calcium supplementation, in patients with osteoporosis is still a matter of controversy, Oyster shell … Dietary calcium intake and bone loss from the spine in healthy postmenopausal …

    199067 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2024-09-25. DSLD Label ID: 314613. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.