Healthy Food Onion, The Natural Anti High Blood Pressure Whole Food

By Kyle J. Norton

High blood pressure, a member of the cluster of metabolic syndrome associated with the risk of heart disease, stroke, and diabetes is a medical condition characterized by elevated blood pressure in the arteries. 

Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps out blood.

More precisely in high blood pressure patients, the heart has to work harder to circulate blood to the body needs.  Long-term elevated blood pressure raises the pressure of the heart, has been found to damage to the heart tissue, leading to the risk of cardiovascular disease.

According to the statistics provided by the CDC, approximately 54% of adults in the US are living with high blood pressure and half of that have an uncontrol condition.

In the US, high blood pressure is a major cause of heart disease and stroke and a leading cause of death.

Most patients with high blood pressure are assymptomatic. However, over time, the elevated high blood pressure can induce symptoms severe headache, fatigue or confusion, vision problems. chest pain difficulty breathing accompanied by symptoms of the abnormal heartbeat

Most prevalent factors associated with high blood pressure found in patients are tobacco or excessive alcohol drinking, chronic medical conditions such as kidney disease, diabetes and sleep apnea.

Some researchers in the investigation of the correlation of diet in the risk hypertension in pregnancy wrote, " a diet rich in vegetables and fish decreased the odds of developing gestational hypertension by 14% (5491/39,362 women developed hypertension) and pre-eclampsia by 21% (1168/54,778 women developed pre-eclampsia) ".

And, "Meanwhile, a Western diet increased the odds of developing gestational hypertension by 18% (5491/39,362 women developed hypertension) and pre-eclampsia by 40% (1168/54,778 women developed pre-eclampsia)".

In other words, by following a healthy diet and moderate exercise, high blood pressure is preventable.

The onion is a plant in the genus Allium, belonging to the family Alliaceae, a close relation of garlic. It is often called the "king of vegetables" because of its pungent taste and found in a large number of recipes and preparations spanning almost the totality of the world's cultures. 

Depending on the variety, an onion can be sharp, spicy, tangy, pungent, mild or sweet.

With an aim to find a potent ingredient for the prevention of heart disease, researchers examiend the effects of quercetin, a bioactive compound found in onion supplementation in reducing blood pressure in hypertensive rodents.

The randomized, double-blind, placebo-controlled, crossover study included men and women diagnosed with prehypertension (n = 19) and stage 1 hypertension (n = 22) received either 730 mg quercetin/d for 28 days or placebo.

Based on the tested differentiation, 

* Both quercetin and placebo did not alter the blood pressure in prehypertensive patients.

* Quercetin exerted a strong effect on the reductions of systolic (-7 +/- 2 mm Hg), diastolic (-5 +/- 2 mm Hg), and mean arterial pressures (-5 +/- 2 mm Hg) in stage 1 hypertensive patient compared to placebo.

* However, quercetin showed no effect on oxidative stress, according to the measurement of the plasma and urine. 

The results strongly suggested that quercetin supplementation lowers blood pressure, depending on the reading of the blood pressure, without alternating the oxidative stress in the arteries.

Collectively, researchers wrote, "These data are the first to our knowledge to show that quercetin supplementation reduces blood pressure in hypertensive subjects. Contrary to animal-based studies, there was no quercetin-evoked reduction in systemic markers of oxidative stress".

Taken altogether, onion processed a higher amount of quercetin may be considered a remedy for the treatment of hypertension, pending to the confirmation of the larger sample size and multicenter human study.

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Author Biography
Kyle J. Norton (Scholar, Master of Nutrition, All right reserved)
Health article writer and researcher; Over 10.000 articles and research papers have been written and published online, including worldwide health, ezine articles, article base, health blogs, self-growth, best before it's news, the karate GB daily, etc.,.
Named TOP 50 MEDICAL ESSAYS FOR ARTISTS & AUTHORS TO READ by Disilgold.com Named 50 of the best health Tweeters Canada - Huffington Post
Nominated for shorty award over last 4 years
Some articles have been used as references in medical research, such as international journal Pharma and Bioscience, ISSN 0975-6299.

Sources
(1) Quercetin reduces blood pressure in hypertensive subjects by Edwards RL1, Lyon T, Litwin SE, Rabovsky A, Symons JD, Jalili T. (PubMed)
(2) Quercetin-supplemented diets lower blood pressure and attenuate cardiac hypertrophy in rats with aortic constriction by Jalili T1, Carlstrom J, Kim S, Freeman D, Jin H, Wu TC, Litwin SE, David Symons J. (PubMed)
(3) A diet rich in vegetables and fish linked to lower risk of high blood pressure during pregnancy by Royal College of Obstetricians and Gynaecologists