Windmill Natural Vitamins Glucosamine Sulfate 750 mg supplement bottle
Windmill Natural Vitamins

Glucosamine Sulfate 750 mg

What We Researched
2 active ingredients analyzed · 11 inactive ingredients decoded · 2 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
56
Product Score Poor
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Calcium (as Dicalcium Phosphate) 50 mg 4%
Glucosamine Sulfate Potassium Chloride (as Shellfish) 750 mg
Bioavailability Very Good

Absorption Rating

  • Calcium (as Dicalcium Phosphate) Fair
  • Glucosamine Sulfate Potassium Chloride (as Shellfish) Good
Other Ingredients Good

Fillers & Additives

  • Microcrystalline Cellulose
  • Dicalcium Phosphate
  • Magnesium Stearate
  • Silica
  • Stearic Acid
  • Croscarmellose Sodium
  • Water
  • Hypromellose
  • Glycerin
  • Talc High
  • Carnauba Wax
Efficacy Very Poor

Dosage Analysis

  • Calcium (as Dicalcium Phosphate) 50 mg Under-dosed
  • Glucosamine Sulfate Potassium Chloride (as Shellfish) 750 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calcium (as Dicalcium Phosphate) 50 mg 4%
Glucosamine Sulfate Potassium Chloride (as Shellfish) 750 mg

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.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Water Safe

Dissolves and carries water-soluble ingredients.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

Talc Avoid

It is used to improve powder flow and prevent clumping.

Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$18$17$16$15$14 $15.63
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 Natural Vitamins

Founded 1972 · West Caldwell, New Jersey, United States · 110 products · windmillvitamins.com/

Certifications

2 certifications
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

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

Violation History

4 incidents
Fda Warning Sale of unregistered drug products in the Philippines.2021-10-15Source
Prop 65 Lead and cadmium2018-03-20Source
Lawsuit Misleading packaging (slack-fill)2018Source
Lawsuit False and deceptive marketing of a weight-loss supplement (QuickTrim)2012Source
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Frequently Asked Questions
Is Windmill Natural Vitamins Glucosamine Sulfate 750 mg a good supplement?

Windmill Natural Vitamins Glucosamine Sulfate 750 mg received a product quality score of 56/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 2 active ingredients with 30 servings per container. Of the 11 inactive ingredients, 10 are rated safe and 0 are flagged for review. The manufacturer, Windmill Natural Vitamins, holds a brand trust score of 66/100 with 2 verified certifications including Non Gmo Project, Usda Organic.

What are the ingredients in Windmill Natural Vitamins Glucosamine Sulfate 750 mg?

Windmill Natural Vitamins Glucosamine Sulfate 750 mg contains 2 active ingredients: Calcium (as Dicalcium Phosphate) (50 mg), Glucosamine Sulfate Potassium Chloride (as Shellfish) (750 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Windmill Natural Vitamins Glucosamine Sulfate 750 mg safe to take?

Windmill Natural Vitamins Glucosamine Sulfate 750 mg 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 Natural Vitamins a trustworthy supplement brand?

Windmill Natural Vitamins receives a brand trust score of 66/100 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 110 products in their lineup. They hold 2 verified certifications including Non Gmo Project, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Windmill Natural Vitamins has 4 historical regulatory incidents on record, which are factored into the trust score.

How to take turmeric?

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 to use turmeric?

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 to take turmeric for inflammation?

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.

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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.