My mother was
Catholic, but my father was not. He didn’t have to eat fish on Fridays, and sometimes he'd get a hamburger instead. But this would raise a ruckus among us four suddenly rebellious kids, so it didn't happen often. Besides, my dad
was the smart one in the family. And he would tell us that fish is brain food.
It makes you smart. And in his mind, being smart is about the best quality you
could find in a human being.
How smart we
all became is up for debate. But whatever intellectual failings we have, it
isn’t for lack of fish.
Now that I've grown up, I actually like seafood. Or, most of it. I can't quite stomach squid or eel or catfish (can anybody?). But I like lobster and shrimp, flounder and cod and snapper and tuna and tilapia. And now I've found out that my dad was right. I read in the
Tufts University “Health & Nutrition Letter” that at least in certain circumstances, seafood is indeed brain food.
Researchers from
Tufts University, in a nine-year study of close to 500 older adults, found that
those consuming at least three servings of fish a week were at significantly
lower risk of dementia and Alzheimer’s disease. And studies from the Rush University Memory and Aging Project
concluded that people who “consumed fish once a week or more had a 60 percent
less risk of Alzheimer’s disease compared with those who rarely or never ate
fish,” according to researcher Martha Clare Morris.
You do have to be cognizant of possible allergic reactions. I was once at a Christmas party, scarfing down the shrimp cocktail, when I broke out into hives. It turns out I have a mild allergy to shrimp, and apparently an allergic reaction to shellfish is not all that uncommon. I took some Benadryl and was fine, but I have to watch the amount of shrimp I eat -- and make sure to pair it with other foods.
Also, the levels of mercury found in seafood can sometimes be a concern. The Rush University researchers did find that those who consumed a lot of fish had higher levels of mercury in their brains. But in older adults higher mercury levels were "not associated with any of the neuropathologies associated with dementia."
Also, the levels of mercury found in seafood can sometimes be a concern. The Rush University researchers did find that those who consumed a lot of fish had higher levels of mercury in their brains. But in older adults higher mercury levels were "not associated with any of the neuropathologies associated with dementia."
Young children, pregnant and
breastfeeding women, as well as women intending to become pregnant, are still advised to limit their
consumption of fish high in mercury – especially tilefish, shark, swordfish,
mackerel and white (albacore) tuna. But according to this research, for older adults the benefits of
seafood far outweigh the risks from mercury. And the benefits are not limited
to the brain. For example, the American Heart Association also advises regularly consuming seafood -- at least two
meals a week.
It seems
that fish oil or fish extract does not offer the same
benefits as consuming real fish. One five-year trial of more than 3000 participants reported no
benefit from supplements. Apparently the process of how fish benefits
our brains and our bodies is more complicated than just delivering a few pills from a bottle.
Once again science has confirmed something our parents -- and apparently the Catholic church -- knew all along. So I try to eat plenty of fish. I'm just careful about the shrimp. And still avoid those frozen fish sticks.
Once again science has confirmed something our parents -- and apparently the Catholic church -- knew all along. So I try to eat plenty of fish. I'm just careful about the shrimp. And still avoid those frozen fish sticks.