对来自世界各地超过10万人的试验数据进行的大规模分析，没有发现任何证据可以证明流行的各种omega-3保健品可以降低早死的风险。
数百万人相信omega-3有助于预防心脏病而购买服用omega-3保健品。
omega-3脂肪酸，主要来自鲑鱼和金枪鱼这样的油性鱼类，少量食用，研究证明有益健康。
但是，迅速发展的保健品行业对omega-3补品的炒作，宣传鱼油可以预防老年痴呆症、抑郁症，心脏病和类风湿性关节炎等一系列疾病，引发了很大争议。
这项研究针对了Omega-3对心脏病，中风和死亡率的影响。
著名心血管医学教授和心脏病专家名誉顾问Tim Chico说：“多项研究数据的研究分析，清楚地表明，omega-3 补充剂不能预防心脏病，”。
他补充道：“这些补品往往价格很高，对于任何希望能降低患心脏病的风险而购买服用保健品的人，我建议把钱花在蔬菜上，更有效。”
来自Cochrane组织的科学家，一个致力于为卫生政策提供信息的全球专家网络，汇集了来自澳大利亚，亚洲和欧美的112,059名参与者的79项随机试验的结果。高确定性研究数据表明，omega-3脂肪酸对降低死亡风险“没有任何实际作用”，对心脏病发作，中风或心率不规则的风险，也没有影响或者影响可以忽略不计，而且有部分证据表明保健品会降低高密度脂蛋白（HDL）水平。
Omega-3 supplements do little to help heart, so ‘spend money on vegetables instead’ (The Daily Telegraph, 18 七月 2018, 頁8)
评论
The widespread belief that taking omega-3 capsules will help protect you from a heart attack, stroke or early death is wrong, according to a large and comprehensive review of the evidence.
Thousands of people take omega-3 supplements regularly and for years. The belief that it protects the heart has spread – and is promoted in the marketing of the supplements – because the results from early trials suggested the capsules had cardiovascular benefits.
Small amounts of omega-3 fatty acids are essential for health. Omega-3 fats are found in certain foods – most famously in oily fish such as salmon and cod liver oil, which contain the long chain fats called eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).
Nuts and seeds, and in particular walnuts and rapeseed oil, contain another sort of omega-3, called alphalinolenic acid (ALA).
But a major review by the respected Cochrane collaboration of all the well-conducted trials carried out internationally to test the effect of omega-3, involving more than 112,000 people, says there is no evidence that the supplements do any good.
“We can be confident in the findings of this review, which go against the popular belief that long-chain omega-3 supplements protect the heart,” said the Cochrane lead author, Dr Lee Hooper.
“This large systematic review included information from many thousands of people over long periods. Despite all this information, we don’t see protective effects.”
The researchers examined 79 randomised trials of omega-3 fats, of which 25 were considered highly trustworthy because they were designed and carried out well. The studies recruited men and women, some healthy and others with existing illnesses, from North America, Europe, Australia and Asia. Some of those who took part had been asked to eat their usual diet, while the rest supplemented it with extra omega-3 fats for at least a year.
In most of the trials, people in the supplement group were asked to take long chain omega-3 fats in the form of a daily capsule. Only a few trials looked at the effects of eating extra oily fish. Other trials asked people to consume more ALA – the form derived from plants – which was added to margarine or given to them in walnuts.
Fish oil supplements made no difference to the risk of death or heart attacks or strokes, the Cochrane researchers found. Eating more ALA from supplemented margarine or walnuts did convey a small benefit, but the reduction in cardiovascular events was very small.
The researchers embarked on their review at the request of the World Health Organization, which is updating its guidance on polyunsaturated fats. The belief that omega-3 supplements could protect against cardiovascular diseases came from a couple of positive results from trials in the late 1980s and early 1990s, said Hooper. “But none of the trials since have shown these results.”
Hooper said there was not enough evidence to show whether eating more oily fish was beneficial, although she suspected it probably was. Extra fish replaced something else in the diet that might be less good for you, she said. “Also iodine, selenium, calcium and vitamin D are at good high levels and much less common in other foods that the fish might replace,” she said.
Tim Chico, professor of cardiovascular medicine at Sheffield University, said it was unlikely any single element of diet could prevent heart disease. “Previous experience has shown that although some types of diet are linked to lower risk of heart disease, when we try to identify the beneficial element of the diet and give it as a supplement it generally has little or no benefit,” he said. It happened with vitamins and now the Cochrane research had shown the same thing with omega-3.
“Such supplements come with a significant cost,” he said, “so to anyone buying them in the hope that they reduce the risk of heart disease, I’d advise them to spend their money on vegetables instead.”
评论
吃 Q10 对保护心脏有益。
评论
这更不靠谱
评论
砖家又出来了
评论
omega-3保健品要降价了
评论
BM要跌
评论
这个还真不是砖家
评论
降低高密度脂蛋白的证据强吗？
评论
忽悠来，忽悠去！吃瓜群众咋活呀
评论
可是我膝关节疼 吃了鱼油就好多了
评论
小葱拌豆腐，慢慢活。
评论
加强锻炼，应该有用的。
评论
我也是
评论
一大篇，只说明 了 不能预防心脏病
但其他好处没有提及
评论
降HDL？那不是更糟?
评论
你厉害
评论
还有专家说：老银要多吃肉，增加蛋白质，增强免疫力。嗨，咋办呀？到底吃啥对？
评论
多吃肉，不是说每天半斤肉，多吃粗粮，不是说顿顿吃粗粮，鱼油有保健作用，不是说吃了肯定有效。听专家的，就当听说书，就是一个乐呵。
评论
专家又说了多锻炼伤关节的
评论
这世上有多少专家为商业公司服务，我们到底怎么听
评论
评论
专家就是砖家，别听！自己说了算
评论
"仅仅有部分证据表明保健品可降低高密度脂蛋白（HDL）水平..." 说反了? HDL是对人体有益的脂蛋白，降低HDL就是没有好处
评论
运动多人就磨损变矮了，很恐怖。
评论
你就矮几毫米，不碍事的。
评论
专家就是为各种利益代言的人
评论
谎言的威力可从来不是以毫米计的。
评论
研究表明的
评论
这些研究变来变去，要听谁的啊
澳洲中文论坛热点
- 悉尼部份城铁将封闭一年，华人区受影响！只能乘巴士（组图）
- 据《逐日电讯报》报导，从明年年中开始，因为从Bankstown和Sydenham的城铁将因Metro South West革新名目而
- 联邦政客们具有多少房产？
- 据本月早些时分报导，绿党副首领、参议员Mehreen Faruqi已获准在Port Macquarie联系其房产并建造三栋投资联