Oyster Shell Calcium 250 +D®

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

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

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.

Serving Size: 2 Tablet(s) · 1 per day

Percent Daily Value (DV) based on a 2,000 calorie diet

• 

  21st Century Calcium Magnesium Zinc + D3 250 Tablets

  iHerb4.7(36000)

  $10.99
• 

  Nature's Blend Oyster Shell Calcium with D3 Tablets

  Swanson Health Products4.6(27)

  $11.67
• 

  Geri-Care Oyster Shell Calcium 250mg Tablet

  eMedicalkits3.0(2)

  $3.57
• 

  21st Century Coral Calcium 120 Capsules

  iHerb4.8(160)

  $15.99
• 

  21st Century Calcium 1000 mg Tablets

  Swanson Health Products4.7(3800)

  $6.49
• 

  21st Century Calcium 500 + D3 Tablets

  Walmart - iHerb4.8(773)

  $6.31
• 

  21st Century Calcium Plus D3 Softgels

  Target4.7(605)

  $13.99
• 

  Major Oyster Shell Calcium Tablets

  Medicaleshop4.5(31)

  $5.60

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

  4.0 (41)

  Vitamin & supplements store

  16535 Southwest Fwy, Sugar Land, TX 77479

  Directions(281) 494-2100

• The Vitamin Shoppe

  4.3 (151)

  Vitamin & supplements store

  13341 Westheimer Rd Ste C, Houston, TX 77077

  Directions(281) 531-7122

• GNC

  4.7 (39)

  Vitamin & supplements store

  5842 Hwy 6, Missouri City, TX 77459

  Directions(281) 403-0404

• Bluebonnet Nutrition

  4.6 (22)

  Vitamin & supplements store

  12915 Dairy Ashford Rd, Sugar Land, TX 77478

  Directions(281) 240-3332

• GNC

  4.5 (46)

  Vitamin & supplements store

  12698 Lake Circle, Stafford, TX 77477

  Directions(281) 494-3900

• The Vitamin Shoppe

  4.6 (146)

  Vitamin & supplements store

  11414 W Broadway St, Pearland, TX 77584

  Directions(713) 340-1736

• GNC

  4.3 (29)

  Vitamin & supplements store

  9340 Hwy 6, Missouri City, TX 77459

  Directions(281) 778-0410

• GNC

  4.1 (28)

  Vitamin & supplements store

  6822 S Texas 6, Houston, TX 77083

  Directions(281) 568-5487

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

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

  … Calcium supplementation from shell powders is widely used to improve bone health and … The CaCO 3 extracted from oyster shells is also used as a food supplement for Ca replacement …

  2023232 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 samples prepared from Corbicula shell … of calcium phosphate prepared from commercial calcium carbonate. Generally, oyster shell produced lower yields of calcium …

  2016184 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

  … , Oyster shell electrolysate (OSE) was reported to raise serum calcium and increase urinary calcium excretion in vitamin D-… Dietary calcium intake and bone loss from the spine in healthy …

  199067 citations

• Identification of valuable compounds from the shell of the edible oyster Crassostrea gigas

  M Bonnard - 2020 - theses.hal.science

  … natural oyster shell (NOS), the calcined natural oyster shell (… of twenty-first century, China is the largest oyster producer, … , this calcium source acts as a real additive for food and health …

  20202 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

  … Other applications with higher economic potential concern NOS and CNOS in material and health fields. NOS as a source of calcium in food requires simple treatments without altering …

  201976 citations

• Mussel shells, a valuable calcium resource for the pharmaceutical industry

  M Mititelu, G Stanciu, D Drăgănescu, AC Ioniță… - Marine Drugs, 2021 - mdpi.com

  … a healthy diet, rich in valuable nutrients to keep the body in optimal condition, the problem of capitalizing mollusc shells as natural sources of calcium… on the health of the population [18]. …

  202168 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-07-25. DSLD Label ID: 11094. 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.