Friday, August 26, 2011

Potassium-rich diet lessen stroke risk

Source Website:
Reuters, Thu Aug 18, 2011 10:47AM GMT

PHOTO: High-potassium foods are generally healthy ones, including beans, a variety of fruits and vegetables, and low-fat dairy.

People that enjoy a diet high in potassium may be at a lower risk of developing a stroke, compared to counterparts who consume less amounts of the mineral.

A review of 10 international studies involving nearly 270,000 middle-aged and older adults showed Swedish scientists that stroke risk decreased as people's reported potassium intake went up.

PHOTO: Many normal functions of the body depend on the proper amounts of potassium in the body.

According to the results, every 1,000-milligram (mg) increase in daily potassium intake were associated with one percent lower odds of stroke in the next five to 14 years, the scientists wrote in the journal Stroke.

"Dietary potassium intake is inversely associated with risk of stroke," wrote lead researcher Susanna Larsson, of the Karolinska Institute in Stockholm.

PHOTO: Benefits and Nutrition in nuts/Grains

Since high-potassium foods are generally healthy ones, including beans, a variety of fruits and vegetables, and low-fat dairy, the findings offer one more reason for people to eat more of them, Larsson told Reuters Health.

PHOTO: SWEET POTASSIUM: The sweet potato is an excellent source of potassium.
(Photo: USDAgov/Flickr)

Potassium is an electrolyte needed for maintaining the body's fluid balance, and is also involved in nerve and muscle control, and blood pressure regulation. Studies suggest that high-potassium diet helps maintain a healthy blood pressure and possibly protect against heart disease and stroke.

The researchers said that the mineral was specifically associated with a lower risk of ischemic strokes, those caused by a blockage in an artery feeding the brain, which account for about 80 percent of strokes.

PHOTO: Foods with Potassium - Apples

However, potassium was not linked to lower odds of hemorrhagic strokes, which occur when there is bleeding in the brain, Larsson and her team added.

If potassium protects against ischemic stroke only, that would suggest there are reasons other than better blood pressure control, the researchers suggested.
By Reuters, Thu Aug 18, 2011 10:47AM GMT, SJM/MB

PHOTO: Eating breakfast – some people think that skipping meals will help them to lose weight, wrong!
Skipping breakfast is the biggest mistake people make. When you wake up your body is conserving energy as it doesn’t know if and when you will eat again. By eating breakfast you are telling it that food is available and your metabolism increases so you actually burn up more fat during the rest of the day.

我的字典: Wǒ de zì diǎn

Potassium: - jiǎ
Heart disease: 心脏病 - xīn zàng bìng
Ischemic strokes: 缺血性中风 - quē xuè xìng zhòng fēng
Excrete: 排出 - pái chū