Rugby Oysco Chewable 500+D supplement bottle
Rugby

Oysco Chewable 500+D Review

What We Researched
2 active ingredients analyzed · 10 inactive ingredients decoded · Last updated: Aug 2026
93
Product Score Excellent
Brand Score Not rated yet

Product score from label analysis. Rugby hasn't completed our brand research yet. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D3 (as Cholecalciferol) 600 IU 150%
Calcium (as Calcium Carbonate) 500 mg 50%
Bioavailability Very Good

Absorption Rating

  • Vitamin D3 (as Cholecalciferol) Good
  • Calcium (as Calcium Carbonate) Fair
Other Ingredients Excellent

Fillers & Additives

  • Sorbitol
  • Acacia Gum
  • Maltodextrin
  • Croscarmellose Sodium
  • Corn Starch
  • Stearic Acid
  • Magnesium Stearate
  • Beta cyclodextrin
  • Natural & artificial lemon flavor
  • Aspartame
Efficacy Excellent

Dosage Analysis

  • Vitamin D3 (as Cholecalciferol) 600 IU Effective
  • Calcium (as Calcium Carbonate) 500 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D3 (as Cholecalciferol) 600 IU 150%
Calcium (as Calcium Carbonate) 500 mg 50%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Sorbitol Safe

Provides sweetness and helps retain moisture in chewables.

Acacia Gum Safe

Binds tablet ingredients together. Also a source of soluble fiber.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Corn Starch Generally_safe

It is used as a filler, binder, or thickener.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Beta cyclodextrin Unknown
Natural & artificial lemon flavor Unknown
Aspartame Unknown
Brand Trust Report
Rugby

Founded 1961 · Livonia, Michigan, USA · 195 products · majorrugby.com/

Transparency

1 claim

Violation History

4 incidents
Recall All liquid products manufactured by PharmaTech LLC and distributed by Rugby Laboratories2017-08-10Source
Recall Rugby Natural Iron Supplement tablets2013-01-17Source
Recall Rugby Children's Pain & Fever Concentrated Drops (Acetaminophen Drops)2011-07-21Source
Lawsuit Failure to have an effective system to identify and report suspicious orders of controlled substances.2011Source
Related Supplements
Frequently Asked Questions
Is Rugby Oysco Chewable 500+D a good supplement?

Rugby Oysco Chewable 500+D received a product quality score of 93/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients Of the 10 inactive ingredients, 5 are rated safe and 0 are flagged for review.

What are the ingredients in Rugby Oysco Chewable 500+D?

Rugby Oysco Chewable 500+D contains 2 active ingredients: Vitamin D3 (as Cholecalciferol) (600 IU), Calcium (as Calcium Carbonate) (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Rugby Oysco Chewable 500+D safe to take?

Rugby Oysco Chewable 500+D has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.