Glucosamine
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Evidence Summary
Glucosamine is a widely studied supplement primarily used for the management of osteoarthritis, particularly in the knee and temporomandibular joint. Research findings are notably inconsistent, with some meta-analyses suggesting benefits in combination with chondroitin, while large-scale randomized controlled trials have shown no significant difference from placebo.
Evidence by Condition
Meta-analyses suggest potential efficacy for pain and function, especially when combined with chondroitin, though large-scale RCTs have shown results non-inferior to placebo.
Systematic reviews have investigated oral glucosamine for TMJ OA, but the evidence is less robust than that for knee osteoarthritis.
While included in some meta-analyses of symptomatic slow-acting drugs, evidence specifically for hip OA is less prominent in the provided research.
Effective Doses
Specific dose ranges were not explicitly detailed in the provided study abstracts.
Key Findings
- Large-scale, multicenter RCTs (N=1229) found no significant difference between glucosamine, chondroitin, or their combination compared to placebo or celecoxib for knee osteoarthritis (PMID: 16495392).
- Recent meta-analyses suggest that the combination of glucosamine and chondroitin may provide clinical value in treating knee osteoarthritis (PMID: 35024906, 35924114).
- Systematic reviews have explored the use of oral glucosamine specifically for the management of temporomandibular joint osteoarthritis (PMID: 22513948, 36902359).
Limitations
Research results are highly contradictory, with significant discrepancies between large-scale randomized controlled trials and various meta-analyses regarding efficacy.
Safety & Interactions
Studies frequently evaluate the safety of glucosamine, but specific drug interactions and contraindications were not detailed in the provided research summaries.
AI-generated summary from 39 peer-reviewed studies. Not medical advice. Always consult a healthcare provider.
Drug-Supplement Interactions
⚠️ This information is for educational purposes only and does not constitute medical advice. Always consult your healthcare provider before combining supplements with medications.
Claims vs. Evidence
| Claim Type | % of Products | Evidence Required | Status |
|---|---|---|---|
| All Other | 100% | Tier D (Unclassified) | ✅ Supported |
| Structure/Function | 89% | Tier C (DSHEA Structure/Function (no pre-approval)) | ✅ Supported |
| Nutrient | 16% | Tier D (Unknown) | ✅ Supported |
| No Claim | 0% | Tier D (No claim on label) | ✅ Supported |
| Qualified Health | 0% | Tier B (FDA Qualified Health Claim) | ✅ Supported |
🏛️ NIH ODS Factsheet
Research by Topic
⚠️ FDA Safety Data
Research Evidence (39)
BACKGROUND: Osteoarthritis (OA) is the most common form of arthritis of the temporomandibular joint (TMJ), and can often lead to severe pain in the orofacial region. Management options for TMJ OA include reassurance, occlusal appliances, physical the...
BACKGROUND: Osteoarthritis (OA) is the most common form of arthritis, and it is often associated with significant disability and an impaired quality of life. OBJECTIVES: To review all randomized controlled trials (RCTs) evaluating the effectiveness a...
BACKGROUND: Osteoarthritis, a common joint disorder, is one of the leading causes of disability. Chondroitin has emerged as a new treatment. Previous meta-analyses have shown contradictory results on the efficacy of chondroitin. This, in addition to ...
AIMS: Though glucosamine and chondroitin have become common practices for treating knee osteoarthritis, the clinical value of these two drugs in combination are still questionable. To evaluate the efficacy and safety of the combination of glucosamine...
BACKGROUND: Glucosamine and chondroitin sulfate are used to treat osteoarthritis. The multicenter, double-blind, placebo- and celecoxib-controlled Glucosamine/chondroitin Arthritis Intervention Trial (GAIT) evaluated their efficacy and safety as a tr...
**Derwich et al., 2023** | Int J Mol Sci | Systematic Review Derwich Marcin, Górski Bartłomiej, ... Pawłowska Elżbieta. Oral Glucosamine in the Treatment of Temporomandibular Joint Osteoarthritis: A Systematic Review. Int J Mol Sci. 2023-Mar-03;24(5)...
**Authority**: European Food Safety Authority (EFSA) **Claim Type**: art13.1 **Substance**: glucosamine **DOI**: 10.2903/j.efsa.2009.1235 **URL**: https://doi.org/10.2903/j.efsa.2009.1235
OBJECTIVE: This analysis was aimed at providing evidence-based medicine basis for systematic evaluation of chondroitin combined with glucosamine in the treatment of knee osteoarthritis. METHODS: The randomized controlled trials (RCTs) of chondroitin ...
OBJECTIVES: To compare the efficacy and safety of chondroitin sulfate plus glucosamine hydrochloride (CS+GH) versus celecoxib in patients with knee osteoarthritis and severe pain. METHODS: Double-blind Multicentre Osteoarthritis interVEntion trial wi...
OBJECTIVE: To assess the symptomatic effectiveness and safety of oral symptomatic slow-acting drugs (SYSADOAs) on the treatment of knee and/or hip osteoarthritis, such as chondroitin, glucosamine, and combination treatment with chondroitin plus gluco...
BACKGROUND: Osteoarthritis (OA) is the most common form of arthritis, and it is often associated with significant disability and an impaired quality of life. OBJECTIVES: To review all randomized controlled trials (RCTs) evaluating the effectiveness a...
AIM: This study was aimed to assess the efficacy and safety of two oral Symptomatic Slow Acting Drugs for Osteoarthritis (SYSADOAs)-Glucosamine Sulfate, Chondroitin Sulfate, and their combination regimen in the management of knee osteoarthritis (KOA)...
**Simental-Mendía et al., 2018** | Rheumatol Int | Meta Analysis Simental-Mendía Mario, Sánchez-García Adriana, ... Simental-Mendía Luis E. Effect of glucosamine and chondroitin sulfate in symptomatic knee osteoarthritis: a systematic review and meta...
OBJECTIVE: Knee osteoarthritis (KOA) is a common chronic progressive disease. We aimed to evaluate the effects of ozone combined with articular injection of sodium hyaluronate on KOA patients and their inflammatory factors and hemorheological indices...
Osteoarthritis is the most prevalent chronic articular disease, in which pain is one of the main symptoms and a major determinant of functional loss. Several therapeutic options have been proposed, including glucosamine, but its actual usefulness has...
To explore the role of celecoxib with glucosamine hydrochloride on functional recovery and reduction of inflammatory factors in patients with knee osteoarthritis. Altogether 128 patients with knee osteoarthritis in the middle and early stage admitted...
This study focused on the difference in efficacy between glucosamine sulfate capsules and Huoxue Xiaozhong recipe in the treatment of knee osteoarthritis, as well as their effects on knee joint function recovery. A total of 128 patients with knee ost...
Glucosamine (GLU) is a natural compound found in cartilage, and supplementation with glucosamine has been shown to improve joint heath and has been linked to reduced mortality rates. GLU is poorly absorbed and may exhibit functional properties in the...
Glucosamine and chondroitin sulfate have been used as nutritional supplementation for joint tissues and osteoarthritis (OA). Biofermented glucosamine is of great interest in the supplement industry as an alternative source of glucosamine. The purpose...
INTRODUCTION: Osteoarthritis (OA) is characterised by synovial joint pain, functional disability and affects ∼13 % of people worldwide, of which ∼16-27 % report Knee-OA (KOA). Glucosamine (Glu) is the most widely used nutraceutical treatment for OA d...
Objective: A combination of curcumagalactomannosides (CGM) (400 mg) with glucosamine hydrochloride (GLN) (500 mg) was evaluated against a standard dietary supplement combination chondroitin sulfate (CHN) (415 mg)/GLN (500 mg) for their effectiveness ...
BACKGROUND: The popularity of dietary supplements for knee osteoarthritis (OA) management is on the rise; however, their effects are still debated. METHODS: This study aimed to investigate the effect of an oral low molecular weight liquid hyaluronic ...
BACKGROUND: Hyaluronan (HA), glucosamine, and chondroitin sulfate are widely consumed as dietary supplements for the treatment of knee osteoarthritis (OA). This study aimed to explore the efficacy and safety of a dietary liquid supplement mixture con...
**McAlindon et al., 2001** | Bull Rheum Dis | Meta Analysis McAlindon T. Glucosamine and chondroitin for osteoarthritis?. Bull Rheum Dis. 2001-Jul;50(7):1-4 The current body of evidence currently supports modest efficacy for glucosamine and chondroit...
OBJECTIVE: To evaluate the efficacy and safety of Xinfeng capsule (XFC) in patients with osteoarthritis (OA). METHODS: This was a multicenter, double-blinded, randomized, controlled, clinical trial. Patients with OA were assigned to the XFC group [tr...
BACKGROUND: Non-steroidal anti-inflammatory drugs, e.g., celecoxib, are commonly used for inflammatory conditions, but can be associated with adverse effects. Combined glucosamine hydrochloride plus chondroitin sulfate (GH+CS) are commonly used for j...
OBJECTIVES: To compare the efficacy and safety of a new formulation of a fixed dose combination of glucosamine sulfate (GS; 1500 mg) and bovine chondroitin sulfate (CS; 1200 mg) versus the reference product (RP) in patients with knee osteoarthritis (...
OBJECTIVE: To determine the added benefits of short-term glucosamine and chondroitin sulfate supplementation in combination with manual therapy and resistance exercise training in the management of knee osteoarthritis. METHODS: A parallel-design, dou...
BACKGROUND: Knee osteoarthritis (OA) is a leading cause of disability among older adults. Medical and surgical treatments are costly and associated with side effects. A natural nutraceutical, collagen hydrolysate, has received considerable attention ...
AIM: To evaluate the efficacy of Artneo (AN) in comparison with a combination of glucosamine hydrochloride and chondroitin sulfate (GC) in patients with osteoarthritis (OA) of the knee joint (KJ). MATERIALS AND METHODS: 70 patients with stages I-III ...
BACKGROUND: Piascledine is a potential treatment for osteoarthritis; however, current evidence regarding its efficacy in patients with knee osteoarthritis remains limited. OBJECTIVE: To evaluate the efficacy of Piascledine in improving symptoms and i...
OBJECTIVE: This study aimed to unveil the effect of glucosamine hydrochloride (GAH) and eperisone combined with exercise therapy on inflammatory markers and knee joint function in patients with knee osteoarthritis (KOA). METHODS: Sixty KOA patients w...
**NCT ID**: NCT03731793 **Phase**: PHASE4 **Status**: COMPLETED **Enrollment**: 60 **Completion**: 2018-10-20
**Leffler et al., 1999** | Mil Med | Rct Leffler C T, Philippi A F, ... Kim P D. Glucosamine, chondroitin, and manganese ascorbate for degenerative joint disease of the knee or low back: a randomized, double-blind, placebo-controlled pilot study. Mil...
**NCT ID**: NCT00377286 **Phase**: NA **Status**: COMPLETED **Enrollment**: 201 **Completion**: 2008-05
**NCT ID**: NCT00032890 **Phase**: PHASE3 **Status**: COMPLETED **Enrollment**: 1588 **Completion**: 2004-02
**NCT ID**: NCT00065377 **Phase**: PHASE1 **Status**: COMPLETED **Enrollment**: 60 **Completion**: 2006-06
**Source:** [Office of Dietary Supplements, NIH](https://ods.od.nih.gov/factsheets/Glucosamine-HealthProfessional/) **Reading Level:** Health Professional This fact sheet from the NIH Office of Dietary Supplements provides evidence-based information ...
**Source**: FDA Center for Food Safety and Applied Nutrition (CFSAN) Adverse Event Reporting System **Total Events**: 49 **Serious Events**: 20 **Date Range**: 20080825 to 20240618 - **DYSPNOEA**: 4
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Frequently Asked Questions
What is glucosamine and what is it used for?
Glucosamine is a supplement primarily used for the management of osteoarthritis, particularly in the knee and temporomandibular joint (TMJ). While it is widely studied, research findings regarding its effectiveness are notably inconsistent.
Does glucosamine work for knee osteoarthritis?
There is moderate evidence suggesting that glucosamine may help with pain and function in knee osteoarthritis, especially when combined with chondroitin. However, some large-scale clinical trials have shown no significant difference between glucosamine and a placebo.
Can glucosamine help with TMJ or hip pain?
There is currently insufficient evidence to confirm the effectiveness of glucosamine for hip or temporomandibular joint (TMJ) osteoarthritis. While research has investigated these uses, the evidence is not as robust as the findings for the knee.
What is the effective dose of glucosamine?
Specific effective dose ranges were not explicitly detailed in the provided research summaries. You should consult a healthcare professional to determine the appropriate dosage for your needs.
Are there any drug interactions with glucosamine?
There are currently no documented drug interactions for glucosamine in the provided research. However, you should always consult your doctor before starting a new supplement to ensure it is safe for your specific situation.
Is glucosamine safe to take?
While studies frequently evaluate the safety of glucosamine, the provided research does not detail specific contraindications or who should avoid it. It is important to speak with a medical professional regarding potential risks and safety for your health profile.
Answers generated from research evidence. Not medical advice.