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Glucosamine Sulfate

product on market Tablet or Pill Nature's Way FlexMax Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Glucosamine sulfate is researched for its role in supporting joint health and cartilage maintenance, though clinical evidence remains moderate. Potassium chloride serves as a stabilizing agent in this formulation. Current data suggests these ingredients are generally well-tolerated for most users.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Glucosamine Sulfate
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Tablet(s)
Serving Size
40
Servings
Non-Nutrient/Non-Botanical
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Total Carbohydrates
1 Gram(s) (1% DV)
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)

Other Ingredients

Maltodextrin Cellulose Stearic Acid Hypromellose Silica Glycerin
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Recommendation: Take 2 tablets twice daily.

Warnings & Precautions

Keep out of reach of children.

Safety sealed with printed inner seal. Do not use if seal is broken or missing.

If pregnant, nursing, or taking any medications, consult a healthcare professional before use.

Contains shellfish (shrimp, crab and lobster).

Formulation Notes

Researched Potency: Glucosamine supports healthy joints.

Sodium-Free: Ideal for individuals concerned about high blood pressure.

Sodium free

Contains shellfish (shrimp, crab and lobster).

Additional Information

Since 1969

Metadata

Product Details

UPC / SKU0 33674 14190 8
DSLD Entry Date2019-02-25
Product TypeNon-Nutrient/Non-Botanical
FormTablet or Pill
BrandNature's Way FlexMax
DSLD ID199911
Data Updated2026-04-11
Research

Research Evidence

39
Research Sources
50
Avg Quality
20
Rct
9
Meta Analysis
4
Clinical Trial
3
Systematic Review
1
Regulatory Source
1
Openfda Safety
B Interventions for the management of temporomandibular joint osteoarthritis
Systematic Review The Cochrane database of systematic reviews 2012 PubMed DOI
B Glucosamine therapy for treating osteoarthritis
Meta Analysis The Cochrane database of systematic reviews 2005 PubMed
B Chondroitin for osteoarthritis
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
B Efficacy and safety of the combination of glucosamine and chondroitin for knee osteoarthritis: a systematic review and meta-analysis
Meta Analysis Archives of orthopaedic and trauma surgery 2023 PubMed DOI
B Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis
Rct The New England journal of medicine 2006 PubMed
B Oral Glucosamine in the Treatment of Temporomandibular Joint Osteoarthritis: A Systematic Review
Systematic Review International journal of molecular sciences 2023 PubMed DOI
B Scientific Opinion on glucosamine and joint health
Regulatory Source EFSA Journal 2009 DOI
B Clinical Efficacy and Safety of Chondroitin Combined with Glucosamine in the Treatment of Knee Osteoarthritis: A Systematic Review and Meta-Analysis
Meta Analysis Computational and mathematical methods in medicine 2022 PubMed DOI
B Combined chondroitin sulfate and glucosamine for painful knee osteoarthritis: a multicentre, randomised, double-blind, non-inferiority trial versus celecoxib
Rct Annals of the rheumatic diseases 2016 PubMed DOI
B Effectiveness and safety of glucosamine and chondroitin for the treatment of osteoarthritis: a meta-analysis of randomized controlled trials
Meta Analysis Journal of orthopaedic surgery and research 2018 PubMed DOI
View all evidence for Glucosamine →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.