Oyster Shell Calcium & Magnesiumnone

Minerals

Brand: Nature's Blend

Tablet or PillMineralOn Market

Functions

Bone & Joint

Product label for Oyster Shell Calcium & Magnesium — Click to view full label

Net Contents

100 Tablet(s)

Serving Size

3 Tablet(s)

Servings Per Container

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 79854 50023 3

Product Version

Stock No. 1685 J19 NVC# 54629-068501

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 a %DV; 1 meet or exceed 100% DV.

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: 3 Tablet(s) · 1 per day

Ingredient	Amount Per Serving	% Daily Value
Calcium(Oyster Shell)	750 mg	58%
Magnesium(Magnesium Oxide)	465 mg	111%

Not Present

Other Ingredients

Modified CelluloseCroscarmellose SodiumMaltodextrinAcacia GumMagnesium StearateStearic AcidSilicon DioxideTriacetinPolydextroseWax

Target Groups

Adult (18 - 50 Years)Gluten Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take three tablets 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.

Storage

Store in a cool, dry place.

Formulation

Formulation re: Does NOT Contain

Preservative & gluten free. No starch, artificial colors, 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. Made in USA & American Owned

Formula re: Contains

Calcium is needed by the body for healthy bones, muscles, nervous system, and heart. Magnesium contributes to the maintenance of bone health and a healthy immune function.

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent disease.

Other Label Statements

General Statements: All Other Content

Questions/Comments Call 1-800-682-9862

Seals/Symbols

Lab Tested Potency Assay Guaranteed Release

Manufacturer & Distributor

Manufacturer

National Vitamin Company

Casa Grande, AZ, 85122

1-800-682-9862

Market Reference

$2.89 – $79.99· 40 listings

Nature's Blend Calcium Oyster Shell Magnesium Tablets
The Spa of Charleston4.5(4)
$7.99
Nature's Blend Oyster Shell Calcium with D3 Tablets
Swanson Health Products4.6(27)
$11.67
Nature's Blend Oyster Shell Calcium Tablets
Swanson Health Products4.8(17)
$6.29
Nature's Blend Oyster Shell Calcium Magnesium
GoSupps.com4.5(4)
$39.99
2 Pack Nature's Blend Oyster Shell Calcium & Magnesium Tablets, 750
eBay - vitabox_llc4.5(4)
$16.91
Major Oyster Shell Calcium Tablets
Medicaleshop4.5(31)
$5.60
Manna Pro Oyster Shell 5 lb
Fleet Farm4.4(131)
$7.99
Nature's Blend Calcium Magnesium Zinc Tablets
Swanson Health Products4.8(6)
$6.45

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

GNC
4.4 (41)
Vitamin & supplements store
2101 Fort Henry Dr, Kingsport, TN 37664
Directions (423) 246-1916
Eastman Chemical Bulk
5.0 (3)
Pharmacy
604 Simpson St, Kingsport, TN 37660
Directions
Abstract Athletics
Vitamin & supplements store
214 Broad St, Kingsport, TN 37660
Directions (423) 863-6592
Holographic Health, Inc.
4.5 (11)
Store
516 E Market St, Kingsport, TN 37660
Directions (800) 566-1522
Walgreens
3.8 (70)
Vitamin & supplements store
2200 Memorial Blvd, Kingsport, TN 37664
Directions (423) 246-0234
CVS
2.9 (175)
Vitamin & supplements store
128 W Stone Dr, Kingsport, TN 37660
Directions (423) 247-4171
Mac's Medicine Mart
4.4 (277)
Vitamin & supplements store
1455 E Center St, Kingsport, TN 37664
Directions (423) 245-2181
The Vitamin Shoppe
4.6 (188)
Vitamin & supplements store
3120 Peoples St, Johnson City, TN 37604
Directions (423) 282-2507

Research & Studies

Research progress on applications of calcium derived from marine organisms
Y Xu, J Ye, D Zhou, L Su - Scientific reports, 2020 - nature.com
… calcium intake need 1500–2000 mg calcium per … Oyster shell calcium powder can improve the chewiness and springiness of restructured ham 94 . Calcium-rich shrimp and crab shells …
202092 citations
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
… calcium phosphate prepared from commercial calcium carbonate. Generally, oyster shell produced lower yields of calcium … shell can remove 108.9 mg of phosphate per 1 gram of shell, …
2016184 citations
Lead content of calcium supplements
EA Ross, NJ Szabo, IR Tebbett - Jama, 2000 - jamanetwork.com
… those found in the oyster shell products. For the relatively low calcium dose of 800 mg/d, these … bed (ie, oyster shell) derivatives when used in the calcium dose range for osteoporosis do …
2000107 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
… [5] demonstrated an effect of 1000 mg calcium suppiementation with calcium gluconate, … [17] failed to observe a significant effect of 2000 mg oral calcium supplement as carbonate in …
199067 citations
Key insights, tools, and future prospects on oyster shell end-of-life: a critical analysis of sustainable solutions
M Bonnard, B Boury, I Parrot - Environmental Science & …, 2019 - ACS Publications
… oyster farming, existing and promising applications are then classified according to the type of raw materials derived from the oyster shell, namely the natural oyster shell (… without Mg 2+ …
201976 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
… nitrifying system using oyster shells as alkalinity-releasing filling materials, shells can be cleaned by … Interestingly, calcium-magnesium acetate, or any calcium acetate derivative showed …
2023232 citations

Related News

Magnesium Forms Explained: Oxide, Citrate, and Glycinate
The magnesium form on a label affects how much elemental magnesium you get. Here is how the common forms compare.
VitaSuppTrack Editorial· Jun 24, 2026

Browse all articles

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-08-23. DSLD Label ID: 274596. 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.