Oyster Calcium 500 mg + D®
Single Vitamin & MineralBrand: Wonder Laboratories
Functions
Net Contents
500 Tablet(s)
Serving Size
1 Tablet(s)
Servings Per Container
500
Supplement Form
Tablet or Pill
Bar Code (UPC/SKU)
Not specified
Product Version
Rev. #03
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 a %DV; 1 meet or exceed 100% DV.
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) · 2 per day
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin D3(Cholecalciferol) | 400 IU | 100% |
| Calcium(Oyster Shell) | 500 mg | 50% |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Directions: As a dietary supplement, take 1 tablet twice daily.
Warnings & Precautions
Precautions re: All Other
Tamper Evident: Do not use this product if imprinted foil seal under cap is broken or missing.
Precautions re: Children
Keep out of reach of children.
Precautions re: Pregnant or Nursing or Prescription Medications
Caution: If you are pregnant or nursing, consult your physician before taking this product.
Precautions re: Allergies
Do not take this product if you are allergic to shell fish.
Storage
Storage
Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees - 30 degrees C).
Formulation
Formulation re: Other
Regular exercise and a healthy diet with enough calcium helps all women approximately 11 to 35 years of age maintain good bone health and may reduce their high risk of osteoporosis later in life. For persons with a family history of osteoporosis, menopausal women, or elderly men and women, adequate calcium intake is linked to reduced risk of osteoporosis through the mechanism of slowing the rate of bone loss. Adequate calcium intake is important but daily intakes above 2000 mg are not likely to provide any additional benefits.
Formulation re: Other
Conforms to USP <2091> for weight. Meets USP <2040> disintegration for maximum bioavailability. Mfg. in an FDA Registered Facility using Good Manufacturing Practices (GMPs)
Formula re: Contains
"Calcium builds strong bones"
Formulation re: Does NOT Contain
Gluten free
Formula re: Contains
Two (2) tablets provide: 1000 mg. of calcium supplying 100% of the U.S. RDA for adults and children 4 or more years of age and 77% for pregnant and lactating women. Three (3) tablets provide: 1500 mg. of calcium supplying 150% of the U.S. RDA for adults and children 4 or more years of age and 115% for pregnant and lactating women.
Formulation re: Other
Made in USA
FDA Statements
FDA Statement of Identity
Dietary Supplement
Other Label Statements
Brand IP Statement(s) re: (c), (TM), (SM)
Formula 196 tablets are not manufactured or distributed by Smithkline Beecham Consumer Healthcare L.P. owner of the trademark OS-CAL 500 + D.
General Statements: All Other Content
Formula 196
General Statements: All Other Content
Compare to OS-CAL 500 + D
Manufacturer & Distributor
Distributor
Wonder Laboratories
115 S.C.T. Ct., White House, TN, 37188
Market Reference
Calcium 500 + D Oyster Shell Calcium with D 200 Tablets
Wonder Laboratories5.0(5)$23.48Wonder Laboratories Cal-Plex-D Calcium Magnesium Tablets
Wonder Laboratories5.0(1)$5.19Wonder Laboratories Liquid Calcium Softgels
Wonder Laboratories5.0(13)$8.49Geri-Care Calcium with Vitamin D Supplement
Tri-State Surgical Supply and Equipment4.4(9)$3.94Major Oyster Shell Calcium Tablets
Medicaleshop4.5(31)$5.60Nature's Blend Oyster Shell Calcium with D3 Tablets
Walmart - DirectRx4.6(27)$15.99Rugby Oyster Shell Calcium 500mg Tablets Supports Strong Bones & Teeth Health 60 Count
Target$9.67Oyster Shell Calcium W/d
EarthTurns.com$11.05
Where to Buy Locally
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Vitamin Factory Outlet
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7030 W 159th St, Orland Park, IL 60462
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181 W Crossroads Pkwy Ste F, Bolingbrook, IL 60440
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4.7 (146)Vitamin & supplements store
100 Park Ave, New York, NY 10017
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4.4 (223)Vitamin & supplements store
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e-NutritionStore.com
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Supplement Superstore
5.0 (1144)Vitamin & supplements store
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Research & Studies
User's Guide to Vitamins and Minerals
J Challem, L Brown - 2002 - books.google.com
… work to maintain and improve health. If you are thinking about … (not laboratory rats, mind you) have found that vitamin E … , a combination of calcium (500 mg daily) and vitamin D (700 IU …
20024 citationsUser's guide to nutritional supplements
J Challem - 2003 - books.google.com
… And you're probably wondering if vitamins are as good as … work to maintain and improve health. If you are thinking about … , a combination of calcium (500 mg daily) and vitamin D (700 IU …
200318 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
… effect of calcium supplementation in our study. Insufficient calcium intake is expected to increase the effect of calcium … Dietary calcium intake and bone loss from the spine in healthy …
199067 citationsMolecular interactions and physiological effects of oyster-derived synthetic peptide-calcium complex: Insight in improving the bone growth and health
X Yu, G Li, S Dou, S Zhou, X Liu, D Zhou - Food Research International, 2025 - Elsevier
In this study, the oyster-derived synthetic peptide VAPEEHPV (V) was utilized to prepare the VCa complex with calcium ions. The results from frontier orbital analysis, molecular docking, …
20254 citationsVitamin bullets. Microencapsulated feeds to fortify shellfish and tackle human nutrient deficiencies
DF Willer, DC Aldridge - Frontiers in Nutrition, 2020 - frontiersin.org
… of oysters fortified at 3% 8-h meets US Department of Health … Our study found that oysters fed vitamin A or D microcapsules … two such oysters would provide enough vitamin A and D to …
202018 citationsBioavailability of calcium from calcium carbonate, DL-calcium lactate, L-calcium lactate and powdered oyster shell calcium in vitamin D-deficient or-replete rats
N Tsugawa, T Okano, R Higashino… - Biological and …, 1995 - jstage.jst.go.jp
… efficacy of calcium from calcium salts used for plasma calcium … calcium is utilized to the same extent from calcium carbonate, DL-calcium lactate, L-calcium lactate and powdered oyster …
199553 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-02-23. DSLD Label ID: 262902. 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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