Fish prevention strategy?

A second study appearing in the Journal of the American Medical Association concluded women who said they dined on fatty fish such as salmon and mackerel at least once a week showed a 74 per cent lower risk of getting kidney cancer compared to non-fish eaters, after 10 years.
Fatty fish contain more omega-3 fatty acids and vitamin D compared with lean fish such as cod and tuna.
Previous research suggests the fatty acids may help slow the growth of cancer, but the findings have not been consistent. People with kidney cancer often have low levels of vitamin D.
Alicja Wolk of the Karolinska Institute in Stockholm and her team did not look at whether fatty fish could help prevent other types of cancer. The kidney cancer results also need to be confirmed since this was the first such population study, the researchers said.
Wolk's team tracked more than 61,000 women aged 40 to 76 for about 15 years. Participants filled in questionnaires about their diet when the study began in 1987 and then again in 1990.

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