Glucosamine Sulfate

Table of Contents

  1. Simple Report
  2. Detailed Report
  3. Overall Effectiveness Rating
  4. Research Rating
  5. Products Containing Glucosamine Sulfate
  6. Claim Ratings
  7. Dosing
  8. References

Glucosamine Sulfate Simple Report

  • Supplement: Glucosamine Sulfate
  • Supplement Category: amino sugars
  • Number of Products Containing Glucosamine Sulfate: 7
  • Effectiveness Rating: 1.8 out of 3
  • Research Rating: 50 (above 80 indicates sufficient research)
  • Number of Studies: 4
  • Number of Claims: 2
  • Effective Dosage Range: 1.5 grams per day

Glucosamine Sulfate Detailed Report

Overall Effectiveness Rating

The overall effectiveness rating for glucosamine sulfate is 1.8 out of 3. This rating means the evidence is mixed on the supplement's ability to deliver positive results. While some of the research supports its use, other evidence does not. Using this supplement may lead to positive results. Note, this effectiveness rating is for glucosamine sulfate as a whole; there are also individual ratings for the claims below.

Read more: What is the effectiveness rating?

Research Rating for Glucosamine Sulfate

There are 4 studies in the database on glucosamine sulfate; the research rating is 50. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this research rating is for glucosamine sulfate as a whole; there are also individual ratings for the claims below.

Read more: What is the research rating?

Products Containing Glucosamine Sulfate

Products Names Amount of Glucosamine Sulfate
Proven Joint 1.2g
Iron Brothers Joint Support 1.5g
Flex-HL 1.5g
Super Flexy 700mg
Core Flex 1.4g
Full list of all 7 products containing Glucosamine Sulfate.

Claim Ratings

The overall ratings above are an average of the individual claim ratings below. Individual claims may have higher or lower ratings compared to the supplement's overall rating. For example, some supplements may have excellent backing for one claim, but be completely useless for another. Click on a claim below for more information.

Performance Claims Effectiveness Rating Research Rating
improve flexibility

Recovery Claims Effectiveness Rating Research Rating
reduce joint pain


The Supplement Database includes 4 studies on glucosamine sulfate dosing. These studies indicate an effective dose is 1.5 grams per day. For a more detailed dosing analysis visit: Supplement Dosing for Glucosamine Sulfate.


Title of Study
Efficacy and safety of glucosamine sulfate versus ibuprofen in patients with knee osteoarthritis
Evaluation of glucosamine sulfate compared to ibuprofen for the treatment of temporomandibular joint osteoarthritis: a randomized double blind controlled 3 month clinical trial
Glucosamine Administration in Athletes: Effects on Recovery of Acute Knee Injury
Randomized, controlled trial of glucosamine for treating osteoarthritis of the knee