Chondroitin

Effects of diet on the outcomes of rheumatic and musculoskeletal diseases (RMDs): systematic review and meta-analyses informing the 2021 EULAR recommendations for lifestyle improvements in people with RMDs.

Gwinnutt JM, Wieczorek M, Rodríguez-Carrio J, Balanescu A, Bischoff-Ferrari HA, Boonen A · RMD open · 2022 · n=83

A EULAR taskforce was convened to develop recommendations for lifestyle behaviours in rheumatic and musculoskeletal diseases (RMDs). In this paper, the literature on the effect of diet on the progression of RMDs is reviewed. Systematic reviews and meta-analyses were performed of studies related to diet and disease outcomes in seven RMDs: osteoarthritis (OA), rheumatoid arthritis (RA), systemic lupus erythematosus, axial spondyloarthritis, psoriatic arthritis, systemic sclerosis and gout. In the first phase, existing relevant systematic reviews and meta-analyses, published from 2013 to 2018, were identified. In the second phase, the review was expanded to include published original studies on diet in RMDs, with no restriction on publication date. Systematic reviews or original studies were included if they assessed a dietary exposure in one of the above RMDs, and reported results regarding progression of disease (eg, pain, function, joint damage). In total, 24 systematic reviews and 1

A Meta-Analysis of the Impact of Nutritional Supplementation on Osteoarthritis Symptoms.

Mathieu S, Soubrier M, Peirs C, Monfoulet LE, Boirie Y, Tournadre A · Nutrients · 2022 · n=166

Conflicting evidence exists concerning the effects of nutrient intake in osteoarthritis (OA). A systematic literature review and meta-analysis were performed using PubMed, EMBASE, and Cochrane Library up to November 2021 to assess the effects of nutrients on pain, stiffness, function, quality of life, and inflammation markers. We obtained 52 references including 50 on knee OA. Twelve studies compared 724 curcumin patients and 714 controls. Using the standardized mean difference, improvement was significant with regard to pain and function in the curcumin group compared to placebo, but not with active treatment (i.e., nonsteroidal anti-inflammatory drugs, chondroitin, or paracetamol). Three studies assessed the effects of ginger on OA symptoms in 166 patients compared to 164 placebo controls. Pain was the only clinical parameter that significantly decreased. Vitamin D supplementation caused a significant decrease in pain and function. Omega-3 and vitamin E caused no changes in OA parame

Dietary supplements for treating osteoarthritis: a systematic review and meta-analysis.

Liu X, Machado GC, Eyles JP, Ravi V, Hunter DJ · British journal of sports medicine · 2018

To investigate the efficacy and safety of dietary supplements for patients with osteoarthritis. An intervention systematic review with random effects meta-analysis and meta-regression. MEDLINE, EMBASE, Cochrane Register of Controlled Trials, Allied and Complementary Medicine and Cumulative Index to Nursing and Allied Health Literature were searched from inception to April 2017. Randomised controlled trials comparing oral supplements with placebo for hand, hip or knee osteoarthritis. Of 20 supplements investigated in 69 eligible studies, 7 (collagen hydrolysate, passion fruit peel extract, Curcuma longa extract, Boswellia serrata extract, curcumin, pycnogenol and L-carnitine) demonstrated large (effect size >0.80) and clinically important effects for pain reduction at short term. Another six (undenatured type II collagen, avocado soybean unsaponifiables, methylsulfonylmethane, diacerein, glucosamine and chondroitin) revealed statistically significant improvements on pain, but wer

The Safety and Efficacy of Glucosamine and/or Chondroitin in Humans: A Systematic Review.

Baden KER, Hoeksema SL, Gibson N, Gadi DN, Craig E, Draime JA · Nutrients · 2025

Glucosamine and chondroitin are natural substances often used alone or in combination for conditions affecting the joints. Our objective was to evaluate the efficacy and safety of glucosamine and/or chondroitin supplementation in humans as well as to determine the common dosages used. A systematic review was conducted using PRISMA methodology. Searches were performed in PubMed and Web of Science and uploaded into Covidence where two independent researchers reviewed articles according to inclusion and exclusion criteria. Quality assessment was performed using the Mixed Methods Appraisal Tool (MMAT). Of the 2013 articles screened, 146 studies were included in our review, with nearly 60% being randomized controlled trials and most conducted in Europe, Asia, or the U.S. Most studies focused on osteoarthritis and joint pain, with over 90% of efficacy studies reporting positive outcomes and most safety studies indicating minimal or no adverse effects. Glucosamine and chondroitin were most

Randomised controlled trial: nutritional supplements to relieve irritable bowel syndrome symptoms by targeting the gut microbiota.

van den Belt M, Liu Z, Janssen Duijghuijsen L, Zoetendal EG, Witteman B, de Roos NM · Journal of nutritional science · 2025

In individuals with irritable bowel syndrome (IBS), eliminating dietary triggers can alleviate symptoms but may lead to nutrient deficiencies and overall health decline. Although various nutritional supplements show promising results in relieving IBS symptoms due to their potential to alter the microbiome, conclusive scientific evidence remains lacking. This exploratory study aims to assess the bifidogenic properties of four nutritional supplement interventions and their impact on IBS-symptoms, faecal microbiota composition, faecal short-chain fatty acid (SCFA) concentrations, stool pattern, and quality of life (QoL), compared to a placebo control. Seventy subjects with IBS, meeting the ROME IV criteria, participated in this randomised, double-blind, placebo-controlled parallel intervention study. Subjects were assigned to one of the four treatment groups, receiving either resistant starch, pea fibre, chondroitin sulfate, protein hydrolysate, or placebo daily for four weeks. Daily repo

Daily oral supplementation with collagen peptides combined with vitamins and other bioactive compounds improves skin elasticity and has a beneficial effect on joint and general wellbeing.

Czajka A, Kania EM, Genovese L, Corbo A, Merone G, Luci C · Nutrition research (New York, N.Y.) · 2018 · n=120

Aging is a multifactorial and natural process that causes physiological changes in organs, tissues and cells over time. In the skin and cartilage, aging leads to a decrease in the synthesis and changes in the arrangement of proteoglycans and collagen, in addition to the loss of glycosaminoglycans, which are responsible for the integrity and health of these tissues. We hypothesized that daily oral supplementation with a liquid nutraceutical containing hydrolyzed fish collagen, vitamins, antioxidants and other active ingredients could improve skin texture and elasticity, and in addition have a protective effect on joint health. A double-blind, randomized, placebo-controlled clinical trial was conducted on 120 subjects who consumed either the test product or placebo on a daily basis for 90 days. Subjects consuming the test product had an overall significant increase in skin elasticity (+40%; P < .0001) when compared to placebo. Histological analysis of skin biopsie

Diet in Knee Osteoarthritis-Myths and Facts.

Kasprzyk N, Nandy S, Grygiel-Górniak B · Nutrients · 2025

Knee osteoarthritis (OA) is a common degenerative joint disease affecting global health. Its increasing prevalence, particularly among aging populations, remains a leading cause of disability. Besides conventional pharmacological and surgical treatments, dietary interventions are promising strategies to alleviate OA symptoms and progression. Unfortunately, scientific evidence does not support many commonly used, misleading ideas about nutrition in knee OA. Recent data highlight the detrimental effects of high-carbohydrate and high-fat diets, particularly those rich in refined sugars and saturated fats, which exacerbate systemic inflammation and contribute to cartilage degradation. Conversely, diets rich in omega-3 fatty acids, polyphenols, and dietary fiber have shown anti-inflammatory and chondroprotective properties. A Mediterranean diet rich in these nutrients effectively prevents the development of OA and its comorbidities, including obesity and cardiovascular disease. The role of

Hyaluronic acid and chondroitin sulfate-based medical devices: formulations, esophageal mucosal protection, and their place in the management of GERD.

Scarpignato C, De Bortoli N, Iovino P, Nacci A, Sarnelli G, Savarino EV · Therapeutic advances in gastroenterology · 2025

Gastroesophageal reflux disease (GERD) remains a challenging condition, even in the third millennium. For much of the past century, Schwartz's dictum-"No acid, no ulcer"-has shaped our approach to acid-related diseases, making acid suppression the cornerstone of therapy. Proton pump inhibitors (PPIs) are widely regarded as the standard treatment for GERD. However, they provide only symptomatic relief and do not address the underlying disease. Moreover, nearly 50% of patients experience limited or no response to PPIs in clinical practice. Recent advances in understanding GERD's pathophysiology, particularly the role of impaired mucosal integrity, have led to innovative therapeutic strategies. Among these, medical devices designed to prevent reflux or coat the esophageal mucosa and form a stable protective barrier represent a significant breakthrough. Esophageal mucosal protection is emerging as a promising approach, especially for patients who do not respond adequately to PPIs. While mu

Nutrition, osteoarthritis and cartilage metabolism.

Messina OD, Vidal Wilman M, Vidal Neira LF · Aging clinical and experimental research · 2019

Osteoarthritis (OA) is a degenerative joint disease and a leading cause of adult disability. There is no cure for OA and there is no effective treatment to stop its progression. Current pharmacologic treatments such as analgesics and non-steroidal anti-inflammatory drugs may improve the pain and offer some relief but they do not affect the progression of the disease. The chronic intake of these drugs may result in severe adverse events. The aim of this review is to revise the effects of nutrition on cartilage metabolism and OA progression. A systematic literature search was performed including those related to macro- and micro-nutrients' actions on cartilage and OA outcome. We selected peer-reviewed articles reporting the results of human clinical trials. Glucosamine and chondroitin sulfate have shown to delay OA knee progression in several clinical trials. The effectiveness of some products considered nutraceuticals has been widely reviewed in the literature. This article presents a

Prospective Randomised Trial Comparing Intravesical Chondroitin Sulphate 2% and DMSO in the Treatment of Painful Bladder Syndrome/ Interstitial Cystitis

n=36 · NCT04268810 · TERMINATED · TERMINATED

Painful bladder syndrome/interstitial cystitis (PBS/IC)is a disease of unknown origin with a significant impact on the quality of life. Next to oral treatment with tricyclic antidepressants or pentosan polysulphate, intravesical treatment can be used as well. The purpose of this treatment is to restore the protective lining of the bladder that consists of glycan structures (GAG). Currently only dimethylsulfoxide (DMSO) is FDA approved for this. Several other compounds have been introduced. We want to compare a solution of chondroitin sulphate 2% with the standard DMSO solution. We will compare the patient perception of benefit,but also pain scores, quality of life and micturition diaries.

A Multi-Center, Randomized, Double-Blind, Parallel Group Evaluation of the Effectiveness and Safety of Uracyst® Compared to Inactive Control in Subjects With Interstitial Cystitis/Painful Bladder Syndrome

n=98 · NCT00919113 · COMPLETED · COMPLETED

A new device for interstitial cystitis is compared to inactive control to determine if it is safe and effective. The study lasts approximately 7 weeks with a 19-week follow-up period.

Fase IV Clinical Trial to Evaluate Chondroitin Sulphate Efficacy and Safety in Patients With Knee Osteoarthritis and Psoriasis

n=126 · NCT00669123 · COMPLETED · COMPLETED

The purpouse of this study is to determine the efficacy and safety of chondroitin sulphate conventional treatment in patients with both knee osteoarthritis and plaque psoriasis.