The blend of 65% Chinese and 35% Thai hibiscus was certified by the National Food Laboratory to be pesticide-free and absent arsenic, cadmium, lead, and mercury. A standardized protocol was followed for each BP measurement: the appropriate cuff size for each participant was determined and the same arm and cuff were used for all measurements. Bien qu'il ait été prouvé que les tisanes possèdent des vertus réelles, leurs effets peuvent parfois différer d'une personne à l'autre, tout comme les médicaments. The baseline demographic and clinical characteristics of the 2 groups were similar (Table 2). Hibiscus tea may provide antibacterial properties. During each weekly visit, participants reported to the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University after fasting for 12 h. To determine the chronic effects of drinking hibiscus tea, each participant's BP was measured before breakfast during the morning of their study visits. Student's t test and chi-square analyses were used to compare baseline characteristics (age, gender, ethnicity, education, menopausal status, baseline BP, nutrient intake) between the placebo and experimental groups. How Long Does Coronavirus Live On Surfaces? Values are means ± SD. Either the herb tea or placebo could be prepared ahead of time but had to be consumed within 12 h of preparation. This strategy may be useful in preventing the progression to moderate or more severe hypertension, potentially reducing the subsequent risk of developing cardiovascular disease. © 2005 - 2019 WebMD LLC. A previous study reported the consumption of a beverage prepared with H. sabdariffa reduced SBP by 17.6 ± 6.8 mm Hg (mean ± SD) in hypertensive patients (n = 54) (16). Herraro-Arellano et al. Giusti MM, Rodríguez-Saona LE, Griffin D, Wrolstad RE. Daily consumption of 3 servings of H. sabdariffa (hibiscus) tea, an amount readily incorporated into the diet, effectively lowered BP in pre- and mildly hypertensive adults. 1). The placebo beverage contained none of the anthocyanin compounds present in the hibiscus tea. Paired t tests were used to compare changes with baseline values. Introduction. 2. Future research should consider whether combining the DASH diet with daily hibiscus tea consumption confers a greater reduction in BP than either approach alone. The change in DBP after treatment was not significant between the placebo and hibiscus groups (P = 0.160). Kromhout D, Bloemberg BP, Feskens EJ, Hertog MG, Menotti A, Blackburn H. Nijveldt RJ, van Nood E, van Hoorn DEC, Boelens PG, van Norren K, van Leeuwen PAM. Data were collected on BP measurements and anthocyanin levels in plasma and urine (pilot study) and from FFQ. The only exception was the study dietitian who was responsible for administering the assigned beverage and preparation instructions to eligible participants at randomization and for assessing compliance. Interestingly, recommendations for the consumption of plant-based beverages (except for fruit juices) such as tea (Camilla sinensis) and tisanes (herbal teas) are absent despite their being particularly rich sources of phytochemicals, especially polyphenols. Decaf Coffee. Compared with baseline, 6 wk of treatment with hibiscus tea lowered mean SBP by 5.5% (P = 0.001), DBP by 4.0% (P = 0.013), and MAP by 4.7% (P = 0.002), whereas the placebo beverage did not affect these variables. regularly incorporating 3 servings/d of hibiscus tea into the diet, effectively reduces BP in pre- and mildly-hypertensive adults. Manach C, Williamson G, Morand C, Scalbert A, Remesy C. Obiefuna PCM, Owolabi OA, Adegunloye BJ, Obiefuna IP, Sofola OA. Anthocyanins give the plant its vibrant color. J Nutr. The blood pressure lowering, and diuretic properties of hibiscus tisane may cause an expansion in the blood vessel and can cause serious health issues. All participants signed a written informed consent agreement before participating. Oxygen radical absorbance capacity (ORAC) values of the study beverages were determined according to the method of Ou et al. Participants were given instructions for preparing their assigned beverage. Hibiscus sabdariffa flowers are native to Africa and grow in many tropical and subtropical regions around the world — including Thailand, China, and Mexico.These flowers are one of many species of shrubs, trees, and flowers in the mallow (Malvaceae) family.Â, Hibiscus tea has a fruity, refreshing flavor that many enjoy hot or iced. (26). Urine samples for anthocyanin analysis were prepared by adding 0.2 mL of 0.44 mol/L trifluoroacetic acid to 1-mL aliquots prior to storage at −80°C. The change in SBP from baseline to 6 wk was linearly correlated with baseline SBP (r = −0.421; P = 0.010) (Fig. In Nigeria, it is used to make a popular beverage called ‘Zobo’ 1 that is consumed to help treat health conditions such as high blood pressure, anemia, cancer 2,3 and kidney stones 4. Therefore, we presumed that levels of these anthocyanins would not be detected in the plasma and urine samples from participants enrolled in the main study and no further analyses of these anthocyanins were conducted. A 2010 study published in the Journal of Nutrition found that consuming hibiscus tea … B. Blumberg, no conflicts of interest. These risks include: Hibiscus and Mallow Much of the current research involves test-tube studies. The total phenol content of freshly brewed H. sabdariffa tea and placebo beverage was determined by the Folin-Ciocalteu reaction (22). They may also prevent many chronic diseases, as well as provide antibacterial effects.Â. (18) compared H. sabdariffa with an angiotensin converting enzyme (ACE) inhibitor in a randomized trial of 75 patients aged 30–80 y. It furthers the University's objective of excellence in research, scholarship, and education by publishing worldwide, This PDF is available to Subscribers Only. After 8 wk of consuming a diet rich in fruits and vegetables, the difference in SBP between the placebo and treatment groups in the DASH study was 2.8 mm Hg (P < 0.001), whereas after consuming the combination diet rich in fruits and vegetables plus low-fat dairy products, this difference was 5.5 mm Hg (P < 0.001). O. Chen, E. Saltzman, and J. Animal models and a limited number of human studies have shown beneficial changes in measures related to cardiovascular health following the consumption of polyphenols, including increases in endothelial function and inhibition of platelet aggregation (41). The health benefits of plant foods appear not to be simply attributable to their macro- and/or micronutrient content alone but also to the presence of phytochemicals (3). A standardized method was used to measure BP at baseline and weekly intervals. The research on the use of hibiscus for treating high blood pressure is quite impressive. The limit of detection was 1 pmol on column. High Blood Pressure Drinking hibiscus tea may benefit people with hypertension (high blood pressure), according to a 2015 review of studies published in the Journal of Hypertension . Participants were randomized according to a computer-generated randomization list stratified by gender and age. The major strengths of our study include the randomized, double-blind, placebo-controlled study design and the use of a standardized method to measure BP. All samples for each participant were analyzed within the same run for every assay performed. It can help boost your immune system and may help to prevent cell damage caused by free radicals in the body. Hibiscus sabdariffa L. tea (tisane) lowers blood pressure in prehypertensive and mildly hypertensive adults. The BP-lowering effects of hibiscus tea observed in our study were greater than those reported in 2 large dietary interventions, the Dietary Approaches to Stop Hypertension (DASH) (27) and PREMIER (28) trials, both of which included participants with baseline BP measures similar to our volunteers. Cholesterol Limitations include sample size and duration, as well as the lack of data related to the bioavailability and potential mechanisms of action of H. sabdariffa. This was confirmed in our pilot study during which no anthocyanins were detected in plasma or urine within 1 h of consuming the hibiscus tea, despite being within the time observed by Frank et al. It can decrease the effectiveness of the malaria drug chloroquine. C’est parce que l’hibiscus possède des propriétés anti-inflammatoires qui peuvent aider à réduire l’inflammation et à améliorer la circulation sanguine. Its mode of action may be as a potent diuretic or "water pill." Accuracy of Freehand versus Navigated Thoracolumbar Pedicle Screw Placement in Patients with Metastatic Tumors of the Spine. Hertog MG, Feskens EJ, Hollman PC, Katan MB, Kromhout D. Hertog MGL, Kromhout D, Aravanis C, Blackburn H, Buzina R, Fidanza F, Giampaoli S, Jansen A, Menotti A, et al.Â. Many of the current studies have been limited to individuals with certain conditions, however, and some show conflicting results.Â, Improve Group means did not differ at baseline. Interval SBP (A) and DBP (B) in prehypertensive and mildly hypertensive adults during a 6-wk intervention with placebo beverage or hibiscus tea. On a population basis, a 5-mm Hg reduction in SBP would result in a 14% overall reduction in mortality due to stroke, a 9% reduction in mortality due to coronary heart disease, and a 7% reduction in all-cause mortality (20). Multiple regression was used to assess the independent predictive capability of age, gender, and dietary supplement use. Levels, Some studies show that hibiscus tea may reduce cholesterol levels — another risk factor of heart disease. Oxford University Press is a department of the University of Oxford. Sixty-five nonsmoking men and women, age 30–70 y, with systolic BP (SBP) 120–150 mm Hg, diastolic BP (DBP) ≤95 mm Hg, and BMI of 18.5–35 kg/m2 were recruited from the greater Boston area via newspaper advertisements, direct mailings, clinic postings, and community health events. In other parts of the world, H. sabdariffa calyces, and beverages derived from them, are called hibiscus tea, bissap, roselle, red sorrel, agua de Jamaica, Lo-Shen, Sudan tea, sour tea, or karkade. Current research shows that the herbal tea may provide many health benefits: Lower Mozaffari-Khosravi H, Jalali-Khanabadi BA, Afkhami-Ardekani M, Fatehi F, Noori-Shadkam M. Herrera-Arellano A, Flores-Romero S, Chavez-Soto MA, Tortoriello J. Herrera-Arellano A, Miranda-Sanchez J, Avila-Castro P, Herrera-Alvarez S, Jiménez-Ferrer JE, Zamilpa A, Román-Ramos R, Ponce-Monter H, Tortoriello J. Chobanian AV, Bakris GL, Black HR, Cushman WC, Green LA, Izzo JLJr, Jones DW, Materson BJ, Oparil S, et al.Â. The potential mechanisms of action for the BP-lowering effect of H. sabdariffa were not determined in our study but have been explored by others. In vitro studies show Hibiscus sabdariffa L., an ingredient found in many herbal tea blends and other beverages, has antioxidant properties, and, in animal models, extracts of its calyces have demonstrated hypocholesterolemic and antihypertensive properties. Cardiovascular risk factors and their effects on the decision to treat hypertension: evidence based review, © 2010 The American Institute of Nutrition, Lipid Source and Peroxidation Status Alter Immune Cell Recruitment in Broiler Chicken Ileum, Prenatal Diet and Children's Trajectories of Anxiety and Depression Symptoms from 3 to 8 Years: The EDEN Mother-Child Cohort, U-Shaped Association between Dietary Acid Load and Risk of Osteoporotic Fractures in 2 Populations at High Cardiovascular Risk, A Systematic Review and Meta-Analysis of Randomized Controlled Trials on the Effects of Oats and Oat Processing on Postprandial Blood Glucose and Insulin Responses, Plasma Metabolomic Profiles of Glycemic Index, Glycemic Load, and Carbohydrate Quality Index in the PREDIMED Study, Food Environment and Supply on Dietary and Lifestyle Choices, Receive exclusive offers and updates from Oxford Academic, Habitual Coffee and Tea Consumption and Cardiometabolic Biomarkers in the UK Biobank: The Role of Beverage Types and Genetic Variation, Estimated Substitution of Tea or Coffee for Sugar-Sweetened Beverages Was Associated with Lower Type 2 Diabetes Incidence in Case–Cohort Analysis across 8 European Countries in the EPIC-InterAct Study, Beverage Habits and Mortality in Chinese Adults. If you take medications for high blood pressure or diabetes, it can cause a significant drop in blood pressure. A study using hamsters showed that hibiscus tea may help decrease markers of liver damage. Frank T, Janssen M, Netzel M, Strass G, Kler A, Kriesl E, Bitsch I. Singleton VL, Orthofer R, Lamuela-Ravent RM. Il s'agit donc, en médecine traditionnelle comme conventionnelle, de rester à l'écoute de son corps et autonome dans ses choix. Other test-tube studies show that hibiscus tea may help  prevent the spread of prostate cancer cells and stomach cancer cells.Â. Qualified participants received either 3 servings/d (720 mL/d) of H. sabdariffa tea or placebo at their second baseline visit and returned once each week for the next 6 wk for subsequent data collection and reassessment. Whereas further research is necessary to elucidate and quantify the contributions of phytochemicals to health promotion and disease prevention, virtually all dietary guidelines created by regulatory agencies and healthcare organizations include recommendations for generous intakes of plant foods, including fruits, vegetables, and whole-grain cereals. This amount of hibiscus is present in a variety of commercial, blended herbal teas. Values are means ± SEM, n = 30 (placebo) or 35 (hibiscus). Lowers Blood pressure: For all those who are on blood pressure lowering medication, or suffering from low blood pressure or hypertension, it is advised to avoid consuming hibiscus tisane. The sample size was calculated to detect a clinically relevant difference in SBP between the intervention and placebo groups (20). Ali MB, Salih WM, Mohamed AH, Homeida AM. Interval blood samples from fasting participants were drawn similarly at each subsequent weekly visit. Herrera-Arellano et al. For instance, they may trigger preterm labor. Hibiscus tea has been repeatedly shown to lower blood pressure in those with existing high blood pressure. It may also be just as effective as some medications at fighting many different bacteria strains.Â, Several studies show the potential of hibiscus tea to promote weight loss and prevent obesity. Previous studies indicate the consumption of polyphenol-rich foods may induce beneficial changes in pathways related to cardiovascular health (40). Wondering whether a decaffeinated coffee is more efficient than a regular coffee in … Other potential mechanisms of action related to the effects of the anthocyanins present in H. sabdariffa are also possible (36–39). Correlation coefficients r and nominal P-values were calculated with the Pearson test. Diastolic BP was also lower, although this change did not differ from placebo (−3.1 ± 7.0 vs. −0.5 ± 7.5 mm Hg; P = 0.160). It has few interactions with medications; however, enthusiastic hibiscus tea consumption could cause hypotension if already taking one or more high blood pressure medications. Abstract. Hypertension is a common global health problem with significant mortality and morbidity. Determination of total anthocyanin and degradation index for cranberry juice, Electrospray and tandem mass spectroscopy as tools for anthocyanin characterization, Anthocyanins are detected in human plasma after oral administration of an elderberry extract, Development and validation of an improved oxygen radical absorbance capacity assay using fluorescein as the fluorescent probe, A clinical trial of the effects of dietary patterns on blood pressure, Effects of comprehensive lifestyle modification on blood pressure control: main results of the PREMIER clinical trial, Phytochemical, pharmacological, and toxological aspects of Hibiscus sabdariffa L: a review, Bioavailability and bioefficacy of polyphenols in human. 1. All tea bags were prepared from the same lot and a sample from this lot was retained. Historically, hibiscus tea has been used in African countries to decrease body temperature, treat heart disease, and sooth a sore throat. The Journal of Nutrition: "Hibiscus Sabdariffa L. Tea (Tisane) Lowers Blood Pressure in Prehypertensive and Mildly Hypertensive Adults." They had either one cup a day of brewed hibiscus tea or a placebo for six weeks. A randomized, double-blind, placebo-controlled clinical trial was conducted to study the effects of hibiscus tea consumption on BP among otherwise healthy pre- and mildly-hypertensive adults. Effect of Single Versus Multiple Fractures on Systemic Bone Loss in Mice. (21) to achieve peak plasma concentrations. All participants followed their usual diet throughout the intervention. Tseng TH, Kao ES, Chu CY, Chou FP, Lin Wu HW, Wang CJ. Drink with style the ‘All Red’ herbal tisane with handpicked Hibiscus petals processed in small batches for a great citri treat Hibiscus tea has been known to prevent hypertension, lower blood pressure, reduce blood sugar levels, keep your liver healthy, help with menstrual cramps, help with depression, aid digestion and help with weight management. and C-Y.O.C. All authors read and approved the final manuscript. Supported by the USDA Agricultural Research Service under Cooperative Agreement no. Regression analysis revealed no significant predictive capability of age, gender, or dietary supplement use once baseline SBP and treatment were accounted for. 58-1950-001 and by Celestial Seasonings of the Hain Celestial Group, Inc., Boulder, CO. Mean BP measurements collected from each visit thereafter serve as postintervention readings. Based on a study in Tufts University by Diane Mckay showed that blood pressure of people who consume hibiscus tea in a daily basis drop 7.2 points in their systolic blood pressure. Values are means ± SD or n (%). Author disclosures: D. L. McKay, C-Y. (18) studies was approximately double the amount we observed. After 6 mo, participants in the PREMIER study given established lifestyle advice (i.e. A daily 10 mg dose of hibiscus anthocyanins – equivalent to 1g of a 1% extract or 500 mg of a 2% extract – is optimal. To compare the antihypertensive effectiveness of sour tea (ST; Hibiscus sabdariffa) with black tea (BT) infusion in diabetic patients, this double-blind randomized controlled trial was carried out. Their control group consumed black tea prepared similarly. 4) J. Nutr, Feb 2010, 140(2):298-303, "Hibiscus Sabdariffa L. Tea (Tisane) Lowers Blood Pressure in Prehypertensive and Mildly Hypertensive Adults" 5) Phytomedicine, Feb 2010, 17(2):83 86, "The effectiveness of Hibiscus sabdariffa in the treatment of hypertension: A systematic review" For full access to this pdf, sign in to an existing account, or purchase an annual subscription. Participants were allowed to consume their beverage either hot or cold. Review of 97 bioavailability studies, The petal extract of Hibiscus sabdariffa produces relaxation of isolated rat aorta, Mechanism of relaxant effect mediated by an aqueous extract of Hibiscus sabdariffa petals in isolated rat aorta, [In vitro enzyme inhibitory and in vivo cardioprotective activities of hibiscus (Hibiscus sabdariffa L.)], Diuretic activity of plants used for the treatment of urinary ailments in Guatemala, An investigation of the diuretic effect of an aqueous extract of the petals of Hibiscus sabdariffa, Upregulation of endothelial nitric oxide synthase by cyanidin-3-glucoside, a typical anthocyanin pigment, Determinants of platelet activation in human essential hypertension, Extracts enriched in different polyphenolic families normalize increased NADPH oxidase expression while having differential effects on insulin resistance, hypertension, and cardiac hypertrophy in high-fructose-fed rats, Down-regulation of adhesion molecules and other inflammatory biomarkers after moderate wine consumption in healthy women: a randomized trial, Favorable effects of berry consumption on platelet function, blood pressure, and HDL cholesterol, Polyphenols and cardiovascular disease: effects on endothelial and platelet function, Evidence based management of hypertension.