Evaluation of Daily Laurus nobilis Tea Consumption on Lipid Profile Biomarkers in Healthy Volunteers

• Published in: Journal of the American College of Nutrition 2020-11, Vol.39 (8), p.733-738
• Main Authors: Chbili, Chahra, Maoua, Maher, Selmi, Mejda, Mrad, Sawssen, Khairi, Hedi, Limem, Khalifa, Mrizek, Nejib, Saguem, Saad, Ben Fredj, Maha
• Format: Article
• Language: English
• Subjects: Biomarkers; HDL cholesterol; Laurus nobilis; lipid profile
• ISSN: 0731-5724; 1541-1087
• DOI: 10.1080/07315724.2020.1727787

Introduction: Laurus nobilis is known in the field of herbal medicine and in vitro studies that it has beneficial effects such as antibacterial, antifungal, antidiabetes, and anti-inflammatory properties. Objective: We investigated whether L. nobilis tea consumption affects the plasma levels of lipid biomarkers in healthy volunteers. Methods: Thirty healthy Tunisian volunteers aged between 20 and 57 years old consumed L. nobilis infusion, prepared from 5 g of dried L. nobilis leaves in 100 ml boiled water, once a day during 10 days. Plasma concentrations of serum low-density lipoprotein (LDL) cholesterol, triglycerides and HDL (high-density lipoprotein) cholesterol were measured by Beckman Coulter D × 600 analyzer before L. nobilis consumption and at the end of the experiment. Results: L. nobilis tea consumption significantly increased the concentration of HDL cholesterol ([HDL cholesterol] D 0 = 1.34 ± 0.25 pg/mL, D 11 =1.42 ± 0.29, p = 0.01). However, a slight decrease that was statistically non-significant in LDL cholesterol and triglycerides levels was observed (p