Windmill D3 Cholecalciferol 250 mcg (10,000 IU) supplement bottle
Windmill

D3 Cholecalciferol 250 mcg (10,000 IU)

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 1 brand certification checked · 2 retailers compared · Last updated: Mar 2026
93
Product Score Excellent
74
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D3 (as Cholecalciferol) 250 mcg 1250%
Bioavailability Excellent

Absorption Rating

  • Vitamin D3 (as Cholecalciferol) Good
Other Ingredients Excellent

Fillers & Additives

  • Olive Oil
  • Bovine Gelatin
  • Glycerin
  • Water
  • Purified
Efficacy Very Good

Dosage Analysis

  • Vitamin D3 (as Cholecalciferol) 250 mcg High

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D3 (as Cholecalciferol) 250 mcg 1250%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Olive Oil Safe

Helps dissolve and absorb fat-soluble vitamins (A, D, E, K).

Bovine Gelatin Safe

Forms capsule shells. Sourced from bovine (cow) collagen.

Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

Water Safe

Dissolves and carries water-soluble ingredients.

Purified Unknown

Price Comparison

Target $14.44 $0.14 / serving
Best Price

Price History

Tracked across major retailers. Updated periodically.

$16$15$14$13$12 $14.44
Target

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Windmill

Founded 1972 · West Caldwell, New Jersey, United States · 150 products · windmillvitamins.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
In House Testing — Verified Source

Violation History

4 incidents
Prop 65 Lead2024-11-15Source
Prop 65 Lead and Cadmium2018-10-01Source
Lawsuit Deceptive packaging with excessive empty space (slack-fill) in their Super Greens product containers.2018Source
Fda Warning Violations of Current Good Manufacturing Practices (cGMP) and making drug claims for several of their supplement products.2014-10-07Source
Related Supplements
NOW Foods Eggshell Membrane, 500 mg, 60 Capsules
NOW Foods Eggshell Membrane, 500 mg, 60 Capsules
Product 100 Brand 100
NOW Foods Sports, D-Ribose Powder, 1 lb (454 g)
NOW Foods Sports, D-Ribose Powder, 1 lb (454 g)
Product 100 Brand 100
NOW Foods Sports, D-Ribose Powder, 8 oz (227 g)
NOW Foods Sports, D-Ribose Powder, 8 oz (227 g)
Product 100 Brand 100
Windmill Triple Strength Cranberry 750 mg
Windmill Triple Strength Cranberry 750 mg
Product 100 Brand 74
Windmill Magnesium Glycinate 200 mg
Windmill Magnesium Glycinate 200 mg
Product 100 Brand 74
Windmill Omega 3 Fish Oil 1,000 mg with EPA & DHA
Windmill Omega 3 Fish Oil 1,000 mg with EPA & DHA
Product 100 Brand 74
Frequently Asked Questions
Is Windmill D3 Cholecalciferol 250 mcg (10,000 IU) a good supplement?

Windmill D3 Cholecalciferol 250 mcg (10,000 IU) 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 1 active ingredients with 100 servings per container. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Windmill, holds a brand trust score of 74/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Windmill D3 Cholecalciferol 250 mcg (10,000 IU)?

Windmill D3 Cholecalciferol 250 mcg (10,000 IU) contains 1 active ingredients: Vitamin D3 (as Cholecalciferol) (250 mcg). Notable high-dose ingredients include Vitamin D3 at 1250% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Windmill D3 Cholecalciferol 250 mcg (10,000 IU) safe to take?

Windmill D3 Cholecalciferol 250 mcg (10,000 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.

Is Windmill a trustworthy supplement brand?

Windmill receives a brand trust score of 74/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1972 and headquartered in West Caldwell, New Jersey, United States, the company offers 150 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Windmill has 4 historical regulatory incidents on record, which are factored into the trust score.

Scan Any Supplement Instantly

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

Download on App Store Browse All Supplements
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.