Go Back Natural Medicine Talk > Health > Heart Health > Hypertension

LinkBack Thread Tools Display Modes
� #1
Old 03-25-2011, 05:52 AM
jfh jfh is offline
Join Date: Dec 2007
Location: Texas, USA
Posts: 3,875
Blog Entries: 16
jfh will become famous soon enoughjfh will become famous soon enough
Default Compounds in strawberries and blueberries lower risk of hypertension

I do not care for these uncontrolled population survey type studies, but we are not going to get clinical studies of something which the pharmaceutical companies cannot patent.

So here goes:

Compounds found in strawberries and blueberries associated with reduced risk of hypertension

Background Hypertension affects over one-third of US adults and is a major predisposing factor to cardiovascular disease. Although elevated blood pressure can be treated with drugs, lifestyle changes alone have been shown to improve hypertension. For instance, losing weight, lowering salt intake, and increasing consumption of certain dietary components (eg, fruit, vegetables, and calcium) are first-line recommendations for prevention and treatment of this disease. Among the many dietary constituents with promising effects on blood pressure regulation are the "flavonoids," a diverse and complex group of substances found mainly in fruit, vegetables, grains, and herbs. Having been shown to enhance immune and antioxidant functions, these compounds are often purported to be the "magic bullets" found in teas, juices, and red wine. However, the specific flavonoids associated with reduction of hypertension risk are less well understood. In response, British and US researchers recently investigated this question by using data from both the Nurses' Health and Health Professionals Follow-Up Studies. Their results can be found in the February 2011 issue of The American Journal of Clinical Nutrition.

Study Design A total of 133,914 women and 46,672 men, none of whom had hypertension, were followed for 14 y. During the study, subjects were asked to complete health questionnaires every 2 y, and dietary intake was assessed every 4 y. Incidence of newly diagnosed hypertension during the 14-y period was then related to consumption of various types of flavonoids.

Results During the investigation, 34,647 new cases of hypertension were reported by the study participants. Dietary information identified tea as the main contributor of flavonoids, with apples, orange juice, blueberries, red wine, and strawberries also providing important amounts. When the researchers looked at the relation between individual subclasses of flavonoids and hypertension, they found a strong inverse relation between the anthocyanins (found in blueberries, strawberries, blood oranges, eggplants, and other fruit and vegetables) and disease risk. Specifically, participants consuming the highest amounts of anthocyanins were 8% less likely to be diagnosed with hypertension than those consuming the lowest amounts (P < 0.03). This effect was even stronger in the younger (≤60 y) study participants and was related mostly to blueberry consumption, one of the two most commonly consumed sources of anthocyanins in the studies analyzed. Compared with people who did not eat blueberries, those who ate 1 serving/wk were 10% less likely to become hypertensive.

Conclusions The authors concluded that "anthocyanins may contribute to the prevention of hypertension" and speculated that this effect may be mediated via enhancement of nitric oxide activity within the blood vessel walls. However, controlled dietary intervention studies using rich sources of anthocyanins including blackcurrants, eggplants, blood oranges, and blueberries will be needed to validate this claim.

- Jim

Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing ever happened.� Sir Winston Churchill
Reply With Quote
� #2
Old 03-30-2011, 09:12 PM
Cookie's Avatar
Join Date: Mar 2009
Location: JerSea
Posts: 1,815
Blog Entries: 14
Cookie has a spectacular aura aboutCookie has a spectacular aura about

Berries are so underrated. Glad to see ya putting this out there jfh!
The art of medicine consists of amusing the patient while nature cures the disease
Reply With Quote
Reply Bookmark and Share

anthocyanins, blueberries, cardiovascular, high blood pressure, hypertension, strawberries

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
more whole grains could lower heart disease risk jfh Heart Health 3 10-30-2010 06:49 AM
Strawberries are about to Become More Toxic kind2creatures Nutrition 0 06-25-2010 08:43 PM
Magnesium May Lower Stroke Risk Harry Hirsute Heart Health 0 03-10-2008 11:58 PM
High Vitamin C Consumption = Lower Stroke Risk Harry Hirsute Vitamins & Supplements 0 01-08-2008 05:51 PM
Omega-3's Again Linked to Lower Colorectal Cancer Risk Harry Hirsute Cancer 0 02-23-2007 09:29 AM