Home
News
In Focus
Business
Metro
Nation
World
Sports
Feature
Opinion
View more »Opinion Columns
Wan LixinOpinion deputy editor of Shanghai Daily
Restaurants get off to a quick start thanks to game-changing policies
High service charges on event ticket refunds call for further regulation
Sunday
- Subscribe
Related News
Study: Stroke risk reduced by eating oily fish
Source: Agencies |
September 28, 2011, Wednesday
|
Print Edition
Print Edition
PEOPLE who have fatty fish a few times each week are slightly less likely to suffer a stroke than those who only eat a little or none at all, according to an international analysis.
The omega-3 fatty acids in fish may lower stroke risk through their positive effects on blood pressure and cholesterol, writes Susanna Larsson and Nicola Orsini of Sweden?s Karolinska Institutet in the journal Stroke.
Their analysis was based on 15 studies conducted in the United States, Europe, Japan and China, each of which asked people how frequently they ate fish, then followed them for between four and 30 years to see who suffered a stroke.
òI think overall, fish does provide a beneficial package of nutrients, in particular the omega-3s, that could explain this lower risk,ó says Dariush Mozaffarian, a Harvard School of Public Health epidemiologist whose research was included in the analysis. òA lot of the evidence comes together suggesting that about two to three servings per week is enough to get the benefit.ó
Vitamin D, selenium and certain types of proteins in fish may also have stroke-related benefits, he added.
Data for the analysis came from close to 400,000 people aged 30 to 103.
Over anywhere from a few years to a few decades, about 9,400 people had a stroke.
Eating three extra servings of fish each week was linked to a six-percent drop in stroke risk, which translates to one fewer stroke among a hundred people eating extra fish over a lifetime.
The people in each study who ate the most fish were 12 percent less likely to have a stroke than those that ate the least.
Mozaffarian?s report separated the effects of different kinds of fish and found that people who ate more fried fish and fish sandwiches, not surprisingly, didn?t get any stroke benefit.
But the research can?t prove that adding more non-fried fish to your diet will keep you from having a stroke, Mozaffarian says.
People òcould have healthier diets in other ways, people could exercise more, people could have better education that could lead them to see their doctors more,ó he added, all of which could decrease their risk of strokes.
Still, most studies have tried to take those other health and nutrition factors into account to isolate the effects of fish as much as possible ? and they suggest a cause-and-effect relationship, he said.
It?s likely that people who start out eating no fish or very little probably have the most to gain by putting it on their plate more often.
òYou get a lot of bang for your buck when you go from low intake to moderate, a few servings per week,ó Mozaffarian says.
After that, the benefit from each extra serving probably goes down.
Fatty fish such as salmon, cod, mackeel and herring are especially high in omega-3s. The American Heart Association recommends at least two servings of fatty fish in particular each week.
The omega-3 fatty acids in fish may lower stroke risk through their positive effects on blood pressure and cholesterol, writes Susanna Larsson and Nicola Orsini of Sweden?s Karolinska Institutet in the journal Stroke.
Their analysis was based on 15 studies conducted in the United States, Europe, Japan and China, each of which asked people how frequently they ate fish, then followed them for between four and 30 years to see who suffered a stroke.
òI think overall, fish does provide a beneficial package of nutrients, in particular the omega-3s, that could explain this lower risk,ó says Dariush Mozaffarian, a Harvard School of Public Health epidemiologist whose research was included in the analysis. òA lot of the evidence comes together suggesting that about two to three servings per week is enough to get the benefit.ó
Vitamin D, selenium and certain types of proteins in fish may also have stroke-related benefits, he added.
Data for the analysis came from close to 400,000 people aged 30 to 103.
Over anywhere from a few years to a few decades, about 9,400 people had a stroke.
Eating three extra servings of fish each week was linked to a six-percent drop in stroke risk, which translates to one fewer stroke among a hundred people eating extra fish over a lifetime.
The people in each study who ate the most fish were 12 percent less likely to have a stroke than those that ate the least.
Mozaffarian?s report separated the effects of different kinds of fish and found that people who ate more fried fish and fish sandwiches, not surprisingly, didn?t get any stroke benefit.
But the research can?t prove that adding more non-fried fish to your diet will keep you from having a stroke, Mozaffarian says.
People òcould have healthier diets in other ways, people could exercise more, people could have better education that could lead them to see their doctors more,ó he added, all of which could decrease their risk of strokes.
Still, most studies have tried to take those other health and nutrition factors into account to isolate the effects of fish as much as possible ? and they suggest a cause-and-effect relationship, he said.
It?s likely that people who start out eating no fish or very little probably have the most to gain by putting it on their plate more often.
òYou get a lot of bang for your buck when you go from low intake to moderate, a few servings per week,ó Mozaffarian says.
After that, the benefit from each extra serving probably goes down.
Fatty fish such as salmon, cod, mackeel and herring are especially high in omega-3s. The American Heart Association recommends at least two servings of fatty fish in particular each week.
- About Us
- |
- Terms of Use
- |
-
RSS - |
- Privacy Policy
- |
- Contact Us
- |
- Shanghai Call Center: 962288
- |
- Tip-off hotline: 52920043
- 沪ICP证：沪ICP备05050403号-1
- |
- 互联网新闻信息服务许可证：31120180004
- |
- 网络视听许可证：0909346
- |
- 广播电视节目制作许可证：沪字第354号
- |
- 增值电信业务经营许可证：沪B2-20120012
Copyright © 1999- Shanghai Daily. All rights reserved.Preferably viewed with Internet Explorer 8 or newer browsers.
