Rugby Vitamin D3 50 mcg (2000 IU) supplement bottle
Rugby

Vitamin D3 50 mcg (2000 IU)

What We Researched
2 active ingredients analyzed · 13 inactive ingredients decoded · Last updated: Mar 2026
68
Product Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D (as Cholecalciferol) 50 mcg (2000 IU) 250%
Calcium (as Calcium Carbonate) 25 mg 2%
Bioavailability Very Good

Absorption Rating

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

Fillers & Additives

  • Microcrystalline Cellulose
  • Starch
  • Stearic Acid
  • Croscarmellose Sodium
  • Sucrose
  • Talc High
  • Acacia
  • Maltodextrin
  • Hypromellose
  • Sodium Ascorbate
  • Magnesium Stearate
  • Triglycerides
  • SILICA AND TOCOPHEROLS
Efficacy Fair

Dosage Analysis

  • Vitamin D (as Cholecalciferol) 50 mcg (2000 IU) Effective
  • Calcium (as Calcium Carbonate) 25 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D (as Cholecalciferol) 50 mcg (2000 IU) 250%
Calcium (as Calcium Carbonate) 25 mg 2%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Starch Generally_safe

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

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Sucrose Generally_safe

It is used as a sweetener.

Talc Avoid

It is used to improve powder flow and prevent clumping.

Acacia Generally_safe

It is used as a binder or thickener.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Sodium Ascorbate Safe

It helps to stabilize the pH and prevent oxidation.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Triglycerides Generally_safe

They may be used as a carrier or to improve absorption of fat-soluble ingredients.

SILICA AND TOCOPHEROLS Unknown
Brand Trust Report
Rugby

Founded 1961 · Livonia, Michigan, USA · 135 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
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Frequently Asked Questions
Is Rugby Vitamin D3 50 mcg (2000 IU) a good supplement?

Rugby Vitamin D3 50 mcg (2000 IU) received a product quality score of 68/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 2 active ingredients with 100 servings per container. Of the 13 inactive ingredients, 6 are rated safe and 0 are flagged for review.

What are the ingredients in Rugby Vitamin D3 50 mcg (2000 IU)?

Rugby Vitamin D3 50 mcg (2000 IU) contains 2 active ingredients: Vitamin D (as Cholecalciferol) (50 mcg (2000 IU)), Calcium (as Calcium Carbonate) (25 mg). Notable high-dose ingredients include Vitamin D at 250% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Rugby Vitamin D3 50 mcg (2000 IU) safe to take?

Rugby Vitamin D3 50 mcg (2000 IU) 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.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. 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.