Oyster Shell Calcium 500 mg with Dnone

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: 1 Tablet(s) · 2 per day

Not Present

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  Geri-Care Calcium with Vitamin D Supplement

  Tri-State Surgical Supply and Equipment4.4(9)

  $3.94Lowest
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  Nature Made Calcium Carbonate 500 mg Tablets

  Walmart4.7(279)

  $14.12
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  Major Oyster Shell Calcium Tablets

  Hey Med Supply4.5(31)

  $7.00
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  Nature's Blend Oyster Shell Calcium with D3 Tablets

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  $13.24
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  Major Oyster Shell Calcium 500 mg Tablets

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  $6.68
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  Nature's Blend Oyster Shell Calcium Tablets

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  Rugby Oyster Shell Calcium 500mg Tablets Supports Strong Bones & Teeth Health 60 Count

  Target

  $9.67
• 

  Bayer Citracal Petites Calcium Citrate Tablets

  Walmart4.5(810)

  $10.92

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• Supplement Superstore

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  Vitamin & supplements store

  8420 Eager Rd, St. Louis, MO 63144

  Directions(314) 961-3935

• The Vitamin Shoppe

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  1490 S Hanley Rd, St. Louis, MO 63144

  Directions(314) 647-2548

• Capitol Nutrition & Supplements

  4.9 (204)

  Vitamin & supplements store

  7030 W 159th St, Orland Park, IL 60462

  Directions(708) 444-2114

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  4.7 (229)

  Vitamin & supplements store

  181 W Crossroads Pkwy Ste F, Bolingbrook, IL 60440

  Directions(630) 965-8526

• Supplement Giant

  5.0 (350)

  Vitamin & supplements store

  7424-A S University Blvd, Centennial, CO 80122

  Directions(720) 749-2975

• Supplement Superstore

  5.0 (1144)

  Vitamin & supplements store

  14004 Manchester Rd #4514, Ballwin, MO 63011

  Directions(636) 391-1085

• The Vitamin Shoppe

  4.5 (210)

  Vitamin & supplements store

  137 E Rte 4, Paramus, NJ 07652

  Directions(201) 556-1117

• The Vitamin Shoppe

  4.3 (184)

  Vitamin & supplements store

  12 4th Ave, Brooklyn, NY 11217

  Directions(718) 858-8314

• Oyster shell calcium induced parotid swelling

  M Palaniappan, S Selvarajan… - Journal of …, 2014 - journals.sagepub.com

  … Hence, we ruled out vitamin D3 in this reaction and suspecting oyster shell … Calcium is essential for secretion of water and electrolyte from parotid, further; it is shown to be vitamin D …

  20148 citations

• The effects of dietary calcium sources and vitamin D3 on egg quality and performance in laying hens

  A Safamehr, S Hedatyati, MH Shahir - 2013 - sid.ir

  … When compared with other groups, egg-shell calcium … between calcium source and vitamin D3 and the main effects of … supplying calcium sources in laying diets with 50-70% oyster shell …

  201311 citations

• EFFECT OF ADDING VITAMIN D3 AND VARIOUS PARTICLE SIZE OF OYSTER SHELL TO DIETS IN CALCIUM AND VITAMIN D3 CONCENTRATION, EGG SHELL …

  AM Rashed, AA Yousif - Anbar Journal of Agricultural Sciences, 2022 - ajas.uoanbar.edu.iq

  … ( 1994 ) This study investigates the inclusion of vitamin D3 and oyster shells with varying particle sizes as ingredients in the diets provided to laying hens. The diets are primarily …

  2022

• Bioavailability 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

  … -replete rats, there is no significant difference in the efficacy of Ca among the Ca salts in terms of increasing body weight and maintaining Ca homeostasis in vitamin D-deficient rats. …

  199553 citations

• Effect of calcium supplementation as oyster shell heated in vacuo on metabolism and survival of rats

  T Fujita, R Kitazawa, M Fukase, K Uchida… - Journal of Bone and …, 1995 - Springer

  … Calcium is an essential component of nutrition, playing … Such oyster shell heated in vacuo was shown to have a higher bioavailability than CaCO3, raising serum calcium in vitamin D-…

  19954 citations

• Bioavailability of calcium from oyster shell electrolysate and DL-calcium lactate in vitamin D-replete or vitamin D-deficient rats

  T Okano, T Kimura, N Tsugawa, Y Oshio… - Journal of Bone and …, 1993 - Springer

  … In order to ensure an adequate Ca intake, it would be possible to consume the Ca fortified-foods and beverages with the newly developed Ca foodstuffs such as oyster shell …

  19938 citations

• Vitamin D: What the Label Numbers Mean

  How to read vitamin D amounts on a Supplement Facts panel, the IU-to-mcg conversion, and why %DV matters.

  VitaSuppTrack Editorial· Jun 24, 2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2021-05-22. DSLD Label ID: 250309. 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.