I first became aware of high dose fish oil when I saw the report on research done in Edinburgh:
http://news.bbc.co.uk/2/hi/health/7307298.stm
They were using simple 'coddy oil.' I can buy 1gm capsules of this in supermarket for (UK) 1.77 for 90. At 10 per day my 1.77 lasts me 9 days.
Only just started so don't know how they will work, but I'm hoping as I have to come off NSAIDs as they're causing skin and uro/genital problems.