하루에 통곡물(Whole grain) 28g씩 먹으면 사망률 9% 낮아져 - 하버드大 한국인 과학자 More whole grains linked with lower mortality
7만4342명 25년 추적 조사 결과 발표
현미/http://blog.daum.net/farmersbarn/852
통곡물(Whole grain)
식용 불가 부분만 제거한 곡물
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현미, 통밀, 보리, 메밀, 귀리, 호밀 등이 있다.
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'거친' 통곡물…각종 성인병·암 예방에 효과적
http://www.doctorw.co.kr/news/articleView.html?idxno=35581
케이콘텐츠 kcontents
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하루에 통곡물을 28g씩 먹으면 심혈관 질환을 예방하는 데 도움이 된다는 연구 결과가 나왔다.
우홍규 미국 하버드대 공중보건대 박사팀은 통곡물을 즐겨 먹으면 심혈관질환으로 사망할 위험이 낮아진다는 연구 결과를 미국의학회학술지 ‘내과학’ 5일자에 게재했다.
연구진은 미국 보건의료 전문가들을 대상으로 식습관을 비롯한 생활 습관과 건강 상태를 1984년부터 2010년까지 26년간 추적 연구한 결과를 분석했다.
조사 대상은 여성 간호사와 남성 의사, 약사 등 의료계 종사자 7만4341명이었고 조사를 시작할 당시 모두 암이나 심혈관질환이 없는 상태였다. 약 25년이 지나는 동안 그 가운데 2만6920명이 사망했다.
특히 연구진은 조사 대상자들의 통곡물 섭취 습관과 사망률 사이의 상관관계를 분석했다. 나이와 흡연 여부, 체질량지수 등의 차이를 반영해서 분석한 결과 통곡물을 많이 섭취할수록 그렇지 않은 사람들보다 사망률과 심혈관질환으로 인한 사망률이 낮은 것으로 나타났다. 반면 암으로 인한 사망률과 통곡류 섭취와는 특별한 상관관계가 없는 것으로 확인됐다.
연구진은 “매일 28g씩 통곡물을 먹으면 그렇지 않은 사람에 비해 사망률과 심혈관질환으로 인한 사망률을 각각 5%와 9%씩 낮추는 효과가 있는 것으로 분석됐다”고 말했다. |
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Boston, MA — Eating more whole grains is associated with up to 15% lower mortality—particularly cardiovascular disease (CVD)-related mortality, according to a large new long-term study from Harvard T.H. Chan School of Public Health.
The study also found that bran, a component of whole grain foods, was associated with similar beneficial effects. Bran intake was linked with up to 6% lower overall mortality and up to 20% lower CVD-related mortality.
The study appears online January 5, 2015 in JAMA Internal Medicine.
“This study further endorses the current dietary guidelines that promote whole grains as one of the major healthful foods for prevention of major chronic diseases,” said Qi Sun, assistant professor in the Department of Nutrition and senior author of the study.
Although eating more whole grains has been previously associated with a lower risk of major chronic diseases, such as type 2 diabetes and CVD, until now there had been limited evidence regarding whole grains’ link with mortality. HSPH researchers and colleagues looked at data from more than 74,000 women from the Nurses’ Health Study and more than 43,000 men from the Health Professionals Follow-Up Study who filled out questionnaires about their diet every two or four years from the mid-1980s to 2010. Adjusting for a variety of factors, such as age, smoking, body mass index, physical activity, and overall diet excluding whole grains, the researchers compared the participants’ whole grain intake with mortality data over an approximately 25-year period.
They found that whole grain intake was associated with up to 9% lower overall mortality and up to 15% lower CVD-related mortality. For each serving of whole grains (28g/day), overall mortality dropped by 5%, and by 9% for CVD-related mortality.
In contrast, the researchers found no association between eating whole grains and lowered cancer-related mortality. They also didn’t find any decreased mortality from eating germ, another essential component of whole grains.
Replacing refined grains and red meats with whole grains is also likely to lower mortality, according to the study. Swapping just one serving of refined grains or red meat per day with one serving of whole grains was linked with lower CVD-related mortality: 8% lower mortality for swapping out refined grains and 20% lower mortality for swapping out red meat.
Other Harvard T.H. Chan authors included lead author Hongyu Wu, postdoctoral fellow in the Department of Nutrition; Alan Flint, research scientist in the Departments of Epidemiology and Nutrition; Laura Sampson, senior research dietetic coordinator; Eric Rimm, professor in the Departments of Epidemiology and Nutrition; Michelle Holmes, associate professor in the Department of Epidemiology; Walter Willett, Fredrick John Stare Professor of Epidemiology and Nutrition and chair of the Department of Nutrition; and Frank Hu, professor of nutrition and epidemiology.
Funding for the study came from the National Institutes of Health (research grants RO1 DK58845, PO1 CA87969, RO1 HL034594, UM1 CA167552, RO1 HL35464, HL60712, U54CA155626 and CA055075) and from the National Heart, Lung, and Blood Institute (Career Development Award ROOHLO98459). “Whole Grain Intake and Mortality: Two Large Prospective Studies in US Men and Women,” Hongyu Wu, Alan J. Flint, Qibin Qi, Rob B. van Dam, Laura A. Sampson, Eric B. Rimm, Michelle D. Holmes, Walter C. Willett, Frank B. Bu, Qi Sun, JAMA Internal Medicine, doi:10.1001/jamainternmed.2014.6283, online Jan. 5, 2015
Visit the Harvard T.H. Chan website for the latest news, press releases and multimedia offerings. http://www.hsph.harvard.edu/news/press-releases/more-whole-grains-linked-with-lower-mortality-risk/ |
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