We have been told to take more of it, and there's strong evidence that Omega 3 really is crucial for our brains, hearts and immune systems.
We don't need any more convincing, it seems - keen to improve our brainpower, we now spend £60million a year on Omega 3 pills.
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Taking vitamin A and E supplements does not lower your risk of cancer, according to the results of a large clinical trial involving nearly 15,000 men in the US.
Both vitamins are powerful antioxidants - substances that can tackle harmful byproducts of the body's metabolism which can cause DNA damage and hence trigger cancer. However, the study shows that taking the vitamins in supplement form has no effect at all on cancer.
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Vitamin D could boost the fertility of women suffering from ovulation problems, a new study has found.
The vitamin - found in oily fish and eggs - helped to restore regular periods, thereby improving the chances of conception.
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An over-the-counter vitamin pill could slow the progression of Alzheimer's disease, according to a promising new study.
A six-month human trial will go ahead next year, after scientists found a form of vitamin B3 protected animals from memory loss associated with the condition.
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A vitamin found in meat, fish and potatoes may help protect the brain from Alzheimer's disease - and even boost memory in healthy people.
US researchers found vitamin B3 lowered levels of a protein linked to Alzheimer's damage in mice.
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A vitamin pill that could slow the progression of Alzheimer's disease is to enter human trials after scientists found it protected animals from memory loss associated with the condition.
High doses of vitamin B3 will be given to 70 people who have recently been diagnosed with the disease as part of the trial due to begin in the new year, which is open to volunteers over the age of 50.
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More than half the brands of popular cod liver oil and omega 3 supplements do not contain the amount of active ingredients they claim on the label, according to the results of new tests.
Fish oil capsules are one of the UK's most popular nutritional supplements and have been shown by a number of studies to help maintain joint flexibility, keep the heart healthy and aid brain development.
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As the season of colds begins, many of us reach for megadose Vitamin C supplements in the belief that they will stave off infection. But is the theory right - or are we, in fact, overdosing?
In 1970, Nobel Prize-winning chemist Linus Pauling proposed in his book, Vitamin C And The Common Cold, that taking a dose of 1,000mg a day could help fight the virus. The current recommended daily allowance of Vitamin C is only 40mg.
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Every Tuesday, Britain's leading nutritionist explains how to eat your way to health. This week Jane explains why it's important that we take care of our bones in the winter months and how vitamins can help in the battle...
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Couples struggling to conceive should consider getting out more, research suggests.
A study found almost a third of men experiencing fertility problems have low levels of vitamin D, the 'sunshine vitamin'.
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DISMAL summer weather could be responsible for an increase in rickets among British Asians, Manchester-based scientists have warned.
Skin experts at Manchester University said the bone disorder - caused by a lack of vitamin D - is on the rise among people of South Asian descent due to a lack of sunshine.
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People with lower levels of vitamin D are more likely to have Parkinson's disease, claim researchers.
A study in the U.S. shows a link between the disease, which leads to movement disorders, and insufficient blood levels of the sunshine vitamin.
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Scientists are testing whether vitamin D supplements can ease symptoms of Parkinson's disease.
A US team found 55% of Parkinson's patients had insufficient levels of vitamin D, compared to 36% of healthy elderly people.
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Vitamin C supplements could cut the effectiveness of cancer drugs, researchers warn.
U.S. scientists found that cancer cells treated with vitamin C in the laboratory resisted drug treatment by up to 70 per cent. Tumours also grew more rapidly, tests on mice found.
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Vitamin C supplements may substantially reduce the benefit from a wide range of anti-cancer drugs, research suggests.
Thirty to 70% less cancer cells in a lab were killed by a range of drugs, after pretreatment with vitamin C.
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A daily dose of fish oils can 'significantly' boost children's GCSE performance, a study has claimed.
Education chiefs in Durham offered free supplement capsules to 3,000 children in the six months leading up to their exams.
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One thousand young offenders from three prisons in England and Scotland are being recruited for a major trial to see if nutritional supplements can improve behaviour.
The study is being organised by neuroscientist Professor John Stein, of the University of Oxford, whose brother is the chef Rick Stein.
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They're bursting with health benefits, require no prescription and cost nothing. Research shows that Britain's hedgerow plants are full of vitamins and antioxidants. Furthermore, scientists are investigating their uses as medicines for a host of conditions, including cancer and high blood pressure.
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Scotland's poor health record could be directly linked to a lack of sunshine, a scientist has said.
Dr Oliver Gillie linked the "extreme" weather to vitamin D deficiency, which is caused by low exposure to sunlight.
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Last week the vitamin campaigner Matthias Rath abandoned a libel suit against the Guardian that had been prompted by articles in which he was accused of endangering thousands of lives by promoting his own pills while denouncing more conventional medicines. Rath focuses his business in eight countries across the world through his website, but it was in South Africa - where he gave them away for free - that his activities generated most concern. Here Chris McGreal investigates the Rath Foundation, and the highly controversial claims of other 'nutritionists' working in the country worst affected by the Aids epidemic, who insist their remedies are the solution to a crisis affecting millions of lives
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