Le thé noir aux graines de nigelle est riche en antioxydants, ce qui contribue à une meilleure santé cardiaque et intestinale, une diminution du cholestérol LDL ainsi que de la pression artérielle et du sucre dans le sang. Ainsi, il :
- réduit la glycémie [1]
- améliore la concentration [2]
- apporte des antioxydants [3]
- favorise le confort digestif [4]
- protège l'estomac [5]
- participe à la bonne circulation sanguine [6]
- diminue le mauvais cholestérol [7]
- aide à prévenir l'apparition de certains cancers [8]
- limite les risques de maladies cardiovasculaires et d'AVC [9]
- réduit l'hypertension artérielle [10]
- baisse l'hormone du stress (cortisol) [11]
Sources :
[1] : Effect of Nigella sativa oil extract on cardiometabolic risk factors in type 2 diabetes: A randomized, double-blind, placebo-controlled clinical trial / Black tea consumption improves postprandial glycemic control in normal and pre-diabetic subjects: a randomized, double-blind, placebo-controlled crossover study
[2] : Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial
[3] : Abdel-Wahhab MA, Aly SE (2005) Antioxidant property of Nigella sativa (black cumin) and Syzygium aromaticum (clove) in rats during aflatoxicosis. J. Appl. Toxicol. 25, 218–223. Ahmad
[4] : Dietary polyphenol impact on gut health and microbiota / Murphy L Y Wan, Vanessa Anna Co, Hani El-Nezami
[5] : Kanter M, Demir H, Karakaya C, Ozbek H. Gastroprotective activity of Nigella sativa L oil and its constituent, thymoquinone against acute alcohol-induced gastric mucosal injury in rats. World J Gastroenterol 2005; 11(42); 6662-6666
[6] : Oskouei Z., Akaberi M., Hosseinzadeh H., (2018) A glance at black cumin (Nigella sativa) and its active constituent, thymoquinone, in ischemia : a review. Iranian journal of basic medical sciences.
[7] : Black tea consumption and serum cholesterol concentration: Systematic review and meta-analysis of randomized controlled trials
[8] : Black tea: Phytochemicals, cancer chemoprevention, and clinical studies / Anticancer activities of Nigella sativa (black cumin)
[9] : Consumption of coffee and tea and risk of developing stroke, dementia, and poststroke dementia: A cohort study in the UK Biobank
[10] : The effects of regular consumption of green or black tea beverage on blood pressure in those with elevated blood pressure or hypertension: A systematic review and meta-analysis
[11] : The effect of diet components on the level of cortisol
