• Open Access

Systematic Review of Efficacy of Nutraceuticals to Alleviate Clinical Signs of Osteoarthritis

Authors

  • J.-M. Vandeweerd,

    Corresponding author
    • Facultés universitaires Notre-Dame-de-la-Paix, URVI (Unité de Recherche Vétérinaire Intégrée), Namur, Belgique
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  • C. Coisnon,

    1. Facultés universitaires Notre-Dame-de-la-Paix, URVI (Unité de Recherche Vétérinaire Intégrée), Namur, Belgique
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  • P. Clegg,

    1. Department of Musculoskeletal Biology, Faculty of Health and Life Sciences, Leahurst Campus, University of Liverpool, Neston, UK
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  • C. Cambier,

    1. Faculté de Médecine vétérinaire, Université de Liège, Belgique (Secteur de Pharmacologie, Pharmacothérapie et Toxicologie, Département des Sciences Fonctionnelles)
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  • A. Pierson,

    1. Faculté de Médecine vétérinaire, Université de Liège, Belgique (Secteur de Pharmacologie, Pharmacothérapie et Toxicologie, Département des Sciences Fonctionnelles)
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  • F. Hontoir,

    1. Facultés universitaires Notre-Dame-de-la-Paix, URVI (Unité de Recherche Vétérinaire Intégrée), Namur, Belgique
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  • C. Saegerman,

    1. Faculté de Médecine vétérinaire, Université de Liège, Belgique (Research Unit in Epidemiology and Risk Analysis Applied to Veterinary Sciences (UREAR), Department of Infectious and Parasitic Diseases)
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  • P. Gustin,

    1. Faculté de Médecine vétérinaire, Université de Liège, Belgique (Secteur de Pharmacologie, Pharmacothérapie et Toxicologie, Département des Sciences Fonctionnelles)
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  • S. Buczinski

    1. Faculté de Médecine Vétérinaire, Université de Montréal, Canada
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Corresponding author: Jean-Michel Vandeweerd, Facultés universitaires Notre-Dame-de-la-Paix, URVI (Unité de Recherche Vétérinaire Intégrée), Namur, Belgium; e-mail: jean-michel.vandeweerd@fundp.ac.be

Abstract

Background

Various treatments of osteoarthritis (OA) have been described, including use of nutraceuticals.

Objectives

To review systematically the literature about the effects of nutraceuticals on clinical signs of pain or abnormal locomotion in horses, dogs, and cats, and to discuss methodological aspects of trials and systematic reviews.

Methods

A systematic search of controlled trials evaluating the impact of nutraceuticals on OA in horses, dogs, and cats was performed, using Medline, CAB Abstracts, and Google Scholar. Scientific evidence was evaluated by means of criteria proposed by the Food and Drug Administration (FDA), and a scoring system adapted from both the CONsolidated Standards of Reporting Trials (CONSORT) statement and recommendations for assessing trials by the Center of Evidence Based Medicine of Oxford.

Results

Twenty-two papers were selected and reviewed, with 5 studies performed in horses, 16 in dogs, and 1 in cats. The strength of evidence was low for all nutraceuticals except for omega-3 fatty acid in dogs. There were limited numbers of rigorous randomized controlled trials and of participants in clinical trials.

Conclusions and Clinical Importance

The evidence of efficacy of nutraceuticals is poor, with the exception of diets supplemented with omega-3 fatty acids in dogs. Greater access to systematic reviews must be part of the objectives of the veterinary science in the future. Their reporting would be improved by internationally agreed-upon criteria for standards and guidelines.

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