Oyster Shell Calcium 500 mgnone
Single Vitamin & MineralBrand: Nature's Blend
Functions
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.
2 distinct active ingredients are disclosed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
2 ingredients report an established %DV per serving.
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
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin D3(Cholecalciferol) | 10 mcg | 50% |
| Calcium(Oyster Shell) | 500 mg | 38% |
Not Present
Other Ingredients
Target Groups
Label Claims
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
Nature's Blend Oyster Shell Calcium with D3 Tablets
Swanson Health Products4.6(27)$11.67Nature's Blend Oyster Shell Calcium Tablets
Swanson Health Products4.8(17)$6.29Nature's Blend Calcium Oyster Shell Magnesium Tablets
Walmart - Vitabox4.5(4)$9.98Major Oyster Shell Calcium Tablets
Medicaleshop4.5(31)$5.60Nature's Blend Oyster Shell Calcium 500mg with D3 Vitamin D3, 100 ct, 6 Pack, Size: 500 mg, Other
Walmart - Pharma Frills4.6(27)$52.14Geri-Care Calcium with Vitamin D Supplement
Tri-State Surgical Supply and Equipment4.4(9)$3.94LowestNature's Blend Calcium Chewable Tablets
Swanson Health Products4.7(31)$21.19Rugby Oyster Shell Calcium 500mg Tablets Supports Strong Bones & Teeth Health 60 Count
Target$9.67
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
3.6 (63)Vitamin & supplements store
904 Audelia Rd, Richardson, TX 75081
HercSupps of Richardson
5.0 (23)Vitamin & supplements store
2100 Alamo Rd Ste X, Richardson, TX 75080
5 Star Nutrition Dallas
4.9 (343)Vitamin & supplements store
11260 N Central Expy Ste 200, Dallas, TX 75243
The Vitamin Shoppe
4.4 (180)Vitamin & supplements store
1001 N Central Expy #100, Plano, TX 75075
olivex store
5.0 (1)Herbal medicine store
9696 Walnut St, Dallas, TX 75243
Great Earth Vitamins
4.8 (42)Vitamin & supplements store
1011 Northwest Hwy B, Garland, TX 75041
The Vitamin Shoppe
4.5 (201)Vitamin & supplements store
5425 Greenville Ave, Dallas, TX 75206
GNC
4.2 (28)Vitamin & supplements store
2160 N Coit Rd #136, Richardson, TX 75080
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 citationsResearch 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 citationsLead 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 citationsShell 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 citationsAntimicrobial 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 citationsIncrease 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.
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