Are fish oils good for you or not ???

20 Nov

I was very impressed last week by a story in the Daily Mail finally accepting that fish oils weren’t a magical cure for any number of health problems. This made me think about ways of getting students to understand the reliability of any particular source of information. After all, reading this one article would make you think that the Mail was a useful source !

After a little thought I typed ‘fish oil’ into the search box on the Mail’s home page and came up with a whole range of ‘interesting stories, a selection of which are listed below:

11 September 2012 “Fish oil supplements ‘do NOT cut risk of heart attacks and strokes”

28 July 2012 “Are you hooked on fish oil yet? The natural wonder drug proven to treat a range of conditions”

13 June 2012 “Elderly warned that taking fish oil pills ‘does not prevent brain decline'” 

31 January 2012 “Taking fish oil during pregnancy ‘protects babies from eczema'”

28 February 2012 “New proof daily dose of fish oil does help keep your brain young”

3 January 2012 “Fish oil may hold key to leukaemia cure”

26 October 2011 “Fish oil supplements ‘can slow growth of prostate cancer cells in just four weeks'”

31 May 2011 “Fish oil could curb binge drinking by reducing desire for alcohol”

8 July 2010 “Fish oil may cut breast cancer risk ‘by a third’ 

24 May 2010 “Health news: Why pregnant women should drink more milk, tackle knee pain with sound waves and could fish oil reduce asthma?”

20 January 2010 “Is fish oil the elixir of life ?”

11 August 2009 “Could a fish oil pill add years to your life?”

22 May 2007 “Heart attack victims should take fish oil pill daily”

15 May 2006 “Fish oil ‘boosts pupil performance'”

I’m not particular interested in the research underlying all of this, (If you are there is an excellent chapter on the ‘fish oil and brain power’ story in Ben Goldacre’s book ‘Bad Science’). However this seems like a great illustration that students do not have to be experts in a particular subject to see that fish oils are unlikely to be the cure for all of these ills. It may well be, once all the research has been conducted, that fish oil does have valuable health properties but that is very different from the panacea presented above !

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