GNC Glucosamine 1000 mg supplement bottle
GNC

Glucosamine 1000 mg

What We Researched
1 active ingredient analyzed · 10 inactive ingredients decoded · 5 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
41
Product Score Poor
88
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
D-Glucosamine Hydrochloride 1000 mg
Bioavailability Fair

Absorption Rating

  • D-Glucosamine Hydrochloride Fair
Other Ingredients Poor

Fillers & Additives

  • Microcrystalline Cellulose
  • Hydroxypropyl Methylcellulose
  • Hydrogenated Vegetable Oil Medium
  • Silicon Dioxide
  • Titanium Dioxide High
  • Croscarmellose
  • Magnesium Stearate
  • Polyethylene Glycol Low
  • Polysorbate 80 Medium
  • Carnauba Wax
Efficacy Very Poor

Dosage Analysis

  • D-Glucosamine Hydrochloride 1000 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
D-Glucosamine Hydrochloride 1000 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.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Hydrogenated Vegetable Oil Caution

It is used as a filler or binder.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

Croscarmellose Generally_safe

It is used as a binder and disintegrant to help tablets dissolve.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Polysorbate 80 Caution

Helps mix oil and water-based ingredients.

Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$27$26$25$24$23 Mar 12 $24.99
GNC

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

Brand Trust Report
GNC

Founded 1935 · Pittsburgh, Pennsylvania, USA · 200 products · gnc.com

Certifications

5 certifications
Informed Sport Verified Source
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Claimed
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Frequently Asked Questions
Is GNC Glucosamine 1000 mg a good supplement?

GNC Glucosamine 1000 mg received a product quality score of 41/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 1 active ingredients Of the 10 inactive ingredients, 5 are rated safe and 4 are flagged for review. The manufacturer, GNC, holds a brand trust score of 88/100 with 5 verified certifications including Informed Sport, Consumerlab, Fda Gmp Inspections, Usda Organic.

What are the ingredients in GNC Glucosamine 1000 mg?

GNC Glucosamine 1000 mg contains 1 active ingredients: D-Glucosamine Hydrochloride (1000 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is GNC Glucosamine 1000 mg safe to take?

GNC Glucosamine 1000 mg has been analyzed for ingredient safety across all its components. Of 10 inactive ingredients, 5 are rated safe. 4 ingredients are flagged for review: Hydrogenated Vegetable Oil, Titanium Dioxide, Polyethylene Glycol. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is GNC a trustworthy supplement brand?

GNC receives a brand trust score of 88/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1935 and headquartered in Pittsburgh, Pennsylvania, USA, the company offers 200 products in their lineup. They hold 5 verified certifications including Informed Sport, Consumerlab, Fda Gmp Inspections, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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.