Eating two fish dishes a week can help diabetics reduce their risk of kidney disease.
British researchers analyzed records of more than 22,000 British people who were middle-aged or older to see if eating fish affected their kidneys.
The respondents were part of a larger European cancer study.
The British researchers said that of the 517 people who had diabetes, those who ate less than one serving of fish each week were four times as likely to show an early sign of kidney disease.
Diabetics are particularly prone to kidney problems and the finding showed that eating fish regularly can help kidney function.
The study authors didn't ask what kind of fish people ate, or what other lifestyle factors that could affect their health.
Critics are calling for further research.
(Copyright 2008 by Newsroom Solutions)