EXTRAIT DE THÉ VERT

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La présente monographie vise à servir de guide à l'industrie pour la préparation de demandes de licence de mise en marché (DLMM) et d'étiquettes dans le but d'obtenir une autorisation de mise en marché d'un produit de santé naturel. Elle ne vise pas à être une étude approfondie de l'ingrédient médicinal.

Nota

Date

29 septembre 2022

Nom(s) propre(s), Nom(s) commun(s), Information(s) d'origine

Tableau 1. Nom(s) propre(s), Nom(s) commun(s), Information(s) d'origine
Nom(s) propre(s) Nom(s) commun(s) Information(s) d'origine
Matière(s) d'origine Partie(s)

Camellia sinensis

  • Extrait de Camellia sinensis
  • Extrait de thé
  • Extrait de Thea sinensis
  • Extrait de thé blanc
  • Extrait de thé vert

Camellia sinensis

Feuille

Références : Nom propre: USDA 2018; Noms communs: Westerterp-Plantenga et al. 2005, Henning et al. 2004, Bruneton 1999; Information d'origine: Nagao et al. 2005, Chantre et Lairon 2002.

Voie d'administration

Orale

Forme(s) posologique(s)

Cette monographie exclut les aliments et les formes posologiques semblables aux aliments tel qu'indiqué dans le document de référence Compendium des monographies.

Les formes posologiques acceptables pour la voie d'administration orale sont indiquées dans la liste déroulante dans le formulaire web de demande de licence de mise en marché pour les demandes officinales.

Usage(s) ou fin(s)

Dose(s)

Sous-population(s)

Adultes 18 ans et plus

Quantité(s)

Antioxydants

Méthodes de préparation : Extraits normalisés (extrait sec, teinture, extrait fluide, décoction, infusion)

Ne pas dépasser 690 milligrammes de catéchines totales, et 150 milligrammes de caféine, par jour (Nagao et al. 2005; Henning et al. 2004; Nakagawa et al. 1999).

Gestion du poids

Méthodes de préparation : Extraits normalisés (extrait sec, teinture, extrait fluide, décoction, infusion)

136 à 300 milligrammes de (-)-épigallocatéchine-3-gallate (EGCG) et 75 à 150 milligrammes de caféine, avec un taux EGCG:caféine de 1,8:1 à 4:1, par jour. Ne pas dépasser 690 milligrammes de catéchines totales (incluant EGCG), par jour (Nagao et al. 2005; Westerterp-Plantenga et al. 2005; Chantre et Lairon 2002).

Mode(s) d'emploi

Tous les produits

Prendre avec de la nourriture (SC 2017).

Durée(s) d'utilisation

Tous les produits

Consulter un praticien de soins de la santé/fournisseur de soins de santé/professionnel de la santé/docteur/médecin si l'utilisation se prolonge au-delà de 12 semaines (Nagao et al. 2005; Westerterp-Plantenga et al. 2005; Chantre et Lairon 2002).

Mention(s) de risque

Précaution(s) et mise(s) en garde

Tous les produits

Contre-indications(s)

Énoncé non requis.

Réaction(s) indésirable(s) connue(s)

Tous les produits

Des cas rares et non prévisibles de lésions du foie associées avec des produits contenant de l'extrait de thé vert ont été rapportés (au Canada et internationalement) (SC 2017).

Ingrédients non médicinaux

Doivent être choisis parmi ceux de la version actuelle de la Base de données des ingrédients des produits de santé naturels (BDIPSN) et respecter les restrictions mentionnées dans cette base de données.

Conditions d'entreposage

Doivent être établies conformément aux exigences décrites dans le Règlement sur les produits de santé naturels (RPSN).

Spécifications

Références citées

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  • Nagao T, Komine Y, Soga S, Meguro S, Hase T, Tanaka Y, Tokimitsu I. Ingestion of a tea rich in catechins leads to a reduction in body fat and malondialdehyde-modified LDL in men. American Journal of Clinical Nutrition 2005;81(1):122-129.
  • Nakagawa K, Ninomiya M, Okubo T, Aoi N, Juneja LR, Kim M, Yamanaka K, Miyazawa T. Tea catechin supplementation increases antioxidant capacity and prevents phospholipid hydroperoxidation in plasma of humans. Journal of Agricultural and Food Chemistry 1999;47(10):3967-3973.
  • Nelson M, Poulter J. Impact of tea drinking on iron status in the UK: a review. Journal of Human Nutrition and Dietetics 2004;17(1):43-54.
  • SC 2017: Santé Canada. Résumé de l'examen de l'innocuité sur les produits de santé naturels contenant de l'extrait de thé vert - Évaluation du risque potentiel de lésions du foie (hépatotoxicité). Ottawa (ON): Santé Canada; Novembre 2017. Mise à jour décembre 2017. [Consulté le 3 juillet 2018]. Disponible à : https://www.canada.ca/fr/sante-canada/services/medicaments-produits-sante/medeffet-canada/examens-innocuite/produits-sante-naturels-contenant-extrait-the-vert-evaluation-risque-potentiel-lesion-hepatique.html
  • SC 2007. Santé Canada. Votre santé et vous. Caféine. Ottawa (ON). [Consulté le 3 juillet 2018]. Disponible à : https://www.hsnsudbury.ca/PortalFr/Portals/7/la%20caffeine.pdf
  • USDA 2018: United States Department of Agriculture, Agricultural Research Service, National Genetic Resources Program. Le lien suivant vous amène à un autre site Web Germplasm Resources Information Network (GRIN). Camellia sinensis (L.) Kuntze. National Germplasm Resources Laboratory, Beltsville (MD). [Consulté le 29 Juin 2018]. Disponible à http://www.ars-grin.gov/cgi-bin/npgs/html/tax_search.pl.
  • Van het Hof KH, de Boer HS, Wiseman SA, Lien N, Weststrate JA, Tijburg LB. Consumption of green or black tea does not increase resistance of low-density lipoprotein to oxidation in humans. The American Journal of Clinical Nutrition 1997;66(5):1125-1132.
  • Westerterp-Plantenga MS, Lejeune MP, Kovacs EM. Body weight loss and weight maintenance in relation to habitual caffeine intake and green tea supplementation. Obesity Research 2005;13(7):1195-1204.
  • Zijp IM, Korver O, Tijburg LB. Effect of tea and other dietary factors on iron absorption. Critical Reviews in Food Science and Nutrition 2000;40(5):371-398.

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