Oily fish and rheumatoid arthritis

Eating salmon at least once a week could halve the risk of developing rheumatoid arthritis .oily fish such as salmon or mackerel had the most marked effect, reducing the risk by 52 percent, a study found. The same benefit comes from eating four portions a week of lean fish such as cod or plaice.

The difference is in the consumption of omega-3 fatty acids, which are present in much higher level in oily fish. Even eating just one portion of any type of fish each week for 10years lead to a29 per cent cut in risk of arthritis, compared with those eating less fish.

Middle-ages and older women are traditionally more at risk of rheumatoid arthritis. The Swedish study, published in the annals of the rheumatic diseases, involved 32,000 women born between 1914 and 1948.they completes surveys on what they ate, in 1987 and again in 1997.during this period ,205 of the women developed rheumatoid arthritis.

After adjusting for factors such as smoking habits, alcohol intake and age, researcher at the institute of environmental medicine at the karolinska institute in Stockholm found women with consistently high daily intake in both 1987 and 1997 of omega-3 fish oils had a 52 per cent lower risk of developing the condition.

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