Used long ago as a medicinal tea in Africa, Asia and the Caribbean, hibiscus tea has been discovered by the rest of the world thanks to the many benefits it brings to health.
- 1 Learn about plant
- 2 For Serving
- 3 properties
- 4 Benefits of hibiscus tea
- 5 1. Weight Loss
- 6 2. Cholesterol Reduction
- 7 3. Helps in Diabetes Prevention and Metabolic Syndrome
- 8 4. Reduced Pressure
- 9 5. It is Diuretic
- 10 6. Improves intestinal function
- 11 7. you can prevent cancer
- 12 8. Antioxidant
- 13 9. protects the liver
- 14 - Other benefits
- 15 contraindications
- 16 Side effects
- 17 How to Hibiscus Tea
- 18 How to take
- 19 Where to find
Learn about plant
As mentioned above, the hibiscus tea is obtained from the infusion of the dried button Hibiscus sabdariffa flower cup, not that kind of hibiscus commonly found in gardens (which also belong to the genus Hibiscus, but are species Hibiscus rosa-sinensis and Hibiscus syriacus).
The hibiscus tea has pink color and flavor nice- close to the framboesa- and, unlike most of the teas is served cold.
In antiquity, Egyptian Pharaohs took hibiscus tea to refresh and control body temperature. In Iran, the hibiscus flowers are used to calm the mind and improve sleep problems.
More recently, the hibiscus tea has been used to burn fat, reduce swelling, improve bowel function and control cholesterol.
As diuretic, hibiscus tea also serves to lower blood pressure and protect functions of the kidneys and liver.
The hibiscus tea is low in calories (100 grams of dried flowers provide 37 calories, but you'll use an infinitely less to prepare a cup of drink), but it contains many essential nutrients for health.
Flavonoids - such as anthocyanins and quercetin - are responsible for much of the benefits of hibiscus tea, but the flowers are also sources of vitamins, minerals, carbohydrates and proteins.
Main hibiscus tea nutrients:
- MineralsIron, magnesium, potassium, phosphorus, copper and calcium;
- Vitamins: A, C, thiamine (B1), riboflavin (B2) and folic acid;
- organic acids: Between 15 and 30% of hibiscus tea is composed of substances such as malic, tartaric and citric three types of phytonutrients that serve to strengthen the immune system and improve skin health.
Fibers and fats are also present in hibiscus flowers, but in very small quantity. Tea also contains no cholesterol and is not a source of caffeine.
Benefits of hibiscus tea
Here's how the hibiscus properties provide benefits to health and fitness. So, what is the hibiscus anyway?
1. Weight Loss
One of the main reasons why the hibiscus tea has gained the spotlight of the fitness world - including being endorsed by a number of famous - is its action on metabolism.
According to a survey published in the Journal of Ethnopharmacology, the hibiscus was responsible for a reduction in weight gain in obese mice. The slimming mechanism hibiscus is not yet fully known, but it is believed that tea helps you lose weight because:
- Lowers blood glucose, hindering the accumulation of fat;
- Hinders the synthesis of new fat cells;
- Decreases of LDL cholesterol and triglycerides;
- Inhibits pancreatic enzymes;
- It has thermogenic effect (speeds up metabolism);
- Blocks an enzyme involved in fatty acid synthesis.
Another study published in 2014 in the journal Food & Function hibiscus confirms these properties. In the human study, scientists found that hibiscus extract reduces obesity and inhibit fat accumulation.
In research conducted by Taiwanese scientists, it was shown that participants who consumed the extract for 12 weeks had a reduction in weight, body mass index, body fat percentage and waist circumference.
Another effect of hibiscus was to improve liver function in the presence of hepatic steatosis. For the authors, this hibiscus tea's effects can be attributed to polyphenols flower.
Finally, a research developed at Hokkaido University, Japan, has shown that hibiscus inhibits the alpha-amylase, an enzyme that converts starch into sugar. This means that the hibiscus tea after meals can help reduce the absorption of carbohydrates, effect which in turn contributes to weight loss.
2. Cholesterol Reduction
No less than 80 million Brazilians are with high cholesterol rates, and the bad news is that this number is constantly increasing. Poor diet, sedentary lifestyle, stress and hereditary factors have combined to leave more than a third of people with LDL cholesterol above the ideal range.
Of course the best way to lower cholesterol is to take care of diet and exercising, but some alternatives - such as the use of certain plants - can be of great assistance. One of these is exactly the hibiscus, which is proven to reduce the concentration of low density lipoproteins in the circulation.
Studies have shown that antioxidants and bioflavonoids present in H. sabdariffa flowers help improve LDL values while reinstating HDL rates, the good cholesterol.
Taiwanese researchers published in 2007 Nutrition Research a clinical test in which it was noted that volunteers who received capsules with hibiscus extract showed a decrease from 8.3 to 14.4% cholesterol only one month of use of the compound.
Another scientific work, which included the participation of 222 patients showed that those with metabolic syndrome and received hibiscus extract had a significant reduction in total cholesterol and LDL - and at the same time, HDL rates - the good cholesterol - is increased circulation.
Volunteers who combined treatment of hibiscus with a diet also saw their triglyceride levels significantly to Defect, indicating the cardioprotective effect of hibiscus tea.
3. Helps in Diabetes Prevention and Metabolic Syndrome
Beside of hypertension and high levels of LDL, the excess sugar in the blood is one of a set of conditions that comprise Metabolic Syndrome. The term refers to metabolic risk factors that manifest themselves in a person and increase the chances of developing diabetes and heart complications.
In addition to pay attention to cholesterol and reduce deposits of abdominal fat, control glucose levels is another way to prevent metabolic syndrome, a condition that affects about 20% of the population.
In the same study (cited above) developed in Mexico with 222 participants, researchers found that hibiscus helps to control blood glucose and improves insulin resistance, two fundamental conditions for the prevention of diabetes.
- See too: 8 Best Types of Tea for Diabetes
4. Reduced Pressure
By stimulating renal function, hibiscus tea favors the elimination of excess fluids, reducing the volume of blood and lowering blood pressure. In a study published in Phytomedicine, it was found that volunteers who took hibiscus tea prepared with 10 grams of dehydrated cup of Roselle showed a reduction in blood pressure.
According to another study, this time in the Journal of Human Hypertension, regular consumption of hibiscus tea can help reduce systolic pressure up to 7.2 points.
Published in 2015 in the Indian Journal of Pharmacology, a Nigerian research has found similar results. By comparing the effects of hibiscus tea with lisinopril (a type of medicine used to treat high blood pressure) in hypertensive diabetics, researchers found that both reduced the blood pressure by more than 30% compared to placebo.
This means that the hibiscus is as effective as medication in treating hypertension - effect, the researchers said, it may be reassigned to the presence of anthocyanins in tea.
5. It is Diuretic
Based on the available scientific literature to date, researchers have observed that the diuretic effect of hibiscus tea is due to the action of H. sabdariffa as an aldosterone antagonist.
Produced in the cortex of the adrenal glands, aldosterone is a hormone which controls the retention of sodium and potassium elimination through the kidneys, thus contributing to the maintenance of water balance of our body.
For those who think of using hibiscus tea for weight loss, this means that in addition to stimulating fat burning, the drink also eliminates excess fluids, lowering the pointer balance and reducing bloating.
6. Improves intestinal function
The hibiscus tea is mildly laxative, as its active compounds improve digestion and promote intestinal transit. For best results with hibiscus tea, have a cup of the liquid upon waking, still fasting.
Phytonutrients hibiscus will "awaken" the renal and hepatic function, while the volume of water stimulates bowel movements, favoring the elimination of feces.
7. you can prevent cancer
Like other food rich in antioxidants, hibiscus contains phytonutrients that may slow the growth of cancer cells by reducing the amount of free radicals in the circulation.
A survey conducted by the Institute and Department of Biochemistry, Chung Shan Medical and Dental College, Taiwan, suggests that hibiscus protocatequínico acid acts as an antioxidant and antitumor inducing apoptosis (programmed cell death) of tumor cells.
The hibiscus tea is not only to reduce the measures but also to maintain health. Antioxidants of hibiscus flowers have an important role in reducing the cell damage caused by oxidative stress.
Although free radicals are commonly associated with aging skin, this is not the only evil that can cause health: excess toxic substances also weakens the immune system and predisposes the body to disease - especially those involving the progressive loss of neurons (read Parkinson's, Alzheimer's).
We can therefore say that the hibiscus tea is used to fight free radicals, reduce inflammation and prevent neurodegenerative diseases.
9. protects the liver
Some studies have examined the effects of hibiscus tea on the liver and the preliminary results have been promising. In a survey published in Food and Chemical Toxicology, the leaves of hibiscus were responsible for a reduction in oxidative damage to the body, and antioxidants plant also reduced liver inflammation.
In addition to preventing future problems in the liver, these hibiscus tea estates also help treat liver disease already installed.
- Other benefits
In addition to the above properties, hibiscus tea is good for:
- Reduce menstrual cramps;
- Calm the nervous system and reduce stress;
- Improve digestion;
- Combat fungal and bacterial infections;
- Strengthen the immune system;
- To improve brain function (increases memory and concentration);
- Reduce the desire to eat sweets: as improved insulin sensitivity, the hibiscus tea reduces the glycemic variation and can be used to ward off cravings for refined carbohydrates.
As reduces blood pressure, hibiscus tea must be avoided by people with naturally low pressure. Tea is also contraindicated in pregnant women because there is evidence that H. sabdariffa flowers can stimulate menstruation.
- The hibiscus reduces estrogen levels: people who are undergoing hormone replacement therapy and women making use of birth control pills should be careful when taking the hibiscus tea daily;
- Fertility: according to a study conducted in India, the hibiscus can change the female reproductive activity, making it difficult to design;
- hallucinatory effects: there are reports of possible intoxication and sense of hallucination after hibiscus tea consumption;
- hypotension: hibiscus tea can excessively lower blood pressure;
- Malaise: weakness, dizziness and dimming of vision (due to excessive elimination of electrolytes);
- Drug interactions: hibiscus tea can reduce the effectiveness of acetaminophen (it is recommended to wait two hours after ingestion of the medicine before taking the tea) and can also interfere with the action of anticancer drugs.
How to Hibiscus Tea
Check how to prepare hibiscus tea for best results:
- Heat 500 ml water and disconnect as soon as they start to boil;
- Add 1 tablespoon of dried leaves of hibiscus water is drown for 5-10 minutes;
- Serve cold or iced.
If you want to increase the thermogenic effect of hibiscus tea, add ginger zest to the ready-made drink.
How to take
The preparation hint of hibiscus tea listed above yields 2 cups of the drink, which can be taken in the morning or between meals. Since the goal of the tea is to improve the metabolism and also detoxify the body, avoid the use of sugar and sweetener.
To minimize the incidence of potential side effects, avoid taking more than two or three cups of tea a day. It is also advisable to merge a week without tea every 15 days of daily consumption of the drink.
Where to find
You can find the dried leaves of H. sabdariffa in health food stores, or online at specialized sites. The price of hibiscus tea is approximately R $ 7.00 for the pack with 100 grams of dried flowers.
- Alarcon-Aguilar FJ et al. Effect of Hibiscus sabdariffa on obesity in MSG mice. J Ethnopharmacol. 2007 Oct 8; 114 (1): 66-71. Epub 2007 Jul 27.
- Chang CH, CH Peng, MD Yeh, Kao ES, Wang CJ. Roselle extract inhibits fat accumulation and obesity, and Improves liver steatosis in humans. Food Funct. 2014 Apr; 5 (4): 734-9. doi: 10.1039 / c3fo60495k. Epub 2014 Feb 19.
- Daniel Chukwu Nwachukwu, Eddy Ikemefuna Aneke, Leonard Fidelis Obika and Nkiru Zuada Nwachukwu. Effects of aqueous extract of Hibiscus sabdariffa on the renin-angiotensin-aldosterone system of Nigerians with mild to moderate essential hypertension: A comparative study with lisinopri Indian J Pharmacol. 2015 Sep-Oct; 47 (5): 540-545.
- Gurrola-Diaz C, Garcia-Lopez P, Enriquez-Sanchez S, et al. Effects of Roselle extract powder and preventive treatment (diet) on the lipid profiles of Patients with metabolic syndrome (Mesy). Phytomedicine 2010; 17: 500-505.
- Mozaffari Khosravi-H, Jalali Khanabadi-BA-Afkhami Ardekani M, F Fatehi, Noori-Shadkam sour M. The effects of TEA (Roselle) on hypertension in Patients with type II diabetes. J Hum Hypertens. 2009 Jan; 23 (1): 48-54. doi: 10.1038 / jhh.2008.100. Epub 2008 Aug 7.
- Lin T, Lin M, Chen C., et al. Roselle extract angiograms serum cholesterol in men and women. Nutr Res 2007; 27: 140-145.
- Wang CJ, Wang JM, Lin WL, Chu CY, Chou FP Tseng TH. Protective effect of Hibiscus anthocyanins against tert-butyl hydroperoxide-induced hepatic toxicity in rats. Food Chem Toxicol. 2000 May; 38 (5): 411-6.