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• A 1997 have a look at published in Annals of Neurology accompanied 5,386 elderly members in Rotterdam. It found that fish consumption decreased the danger of dementia. However, the 2.1-yr common follow-up become much less than the 3 years dementia usually impacts people previous to prognosis. Thus, the take a look at was uncertain as to whether or not fish intake protected towards dementia, or if dementia prevented the contributors from trying extra fish.

• French research published in 2002 in the British Medical Journal (BMJ) observed 1,674 elderly residents of southern France for seven years, studying their consumption of meat as opposed to seafood and the presence of dementia signs and symptoms. The end became that folks that ate fish at least once per week had a appreciably lower threat of being recognized with dementia over a 7-12 months period. This study reinforced the Annals of Neurology findings. Because of the long run, the BMJ have a look at provided stronger evidence of a genuine shielding effect. There became a likely confounding aspect in that people with higher training have each a lower hazard of dementia and higher intake of fish.