The story, however, notes that this was an observational study, not a randomized clinical trial, so maybe the figures are not as reliable as they could be.The study, which included 15,000 people ages 65 and older in China, India, Cuba, Venezuela, Mexico, Peru and the Dominican Republic, found that those who ate fish nearly every day were almost 20 percent less likely to develop dementia than those who ate fish just a few days a week. Adults who ate fish a few days a week were almost 20 percent less likely to develop dementia than those who ate no fish at all.
“There is a gradient effect, so the more fish you eat, the less likely you are to get dementia,” said Dr. Emiliano Albanese, a clinical epidemiologist at King’s College London and the senior author of the study. “Exactly the opposite is true for meat,” he added. “The more meat you eat, the more likely you are to have dementia.” Other studies have shown that red meat in particular may be bad for the brain.
If they believe it is the Omega 3 that is the protective element, is it so hard to do the proper randomized trial on that as a supplement? Or has it already been done?
Well, that just took a quick Google to find that some studies have been done with Omega 3 as a supplement, and the results are very mixed. (Although it looks to me like the studies were done on people who already have a problem. I guess it is very hard to randomly pick a bunch of 60 year olds, get them to take a supplement for years, and see what protective effect it has.)
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