A new study in the July issue of the Journal of the American Dietetic Association suggests that farm-raised fish are disturbingly low in healthy Omega-3 fatty acids and high in Omega-6 fatty acids. This combination appears to be particularly bad for those suffering from diseases involving excessive inflammatory response including heart disease, asthma, and arthritis. The evidence suggests that poor fish farming technique, particularly low quality food fed to the fish to keep costs down, are responsible. U.S. News and World Report has more information here.
Frankly, this shouldn’t come as too much of a surprise. It’s a classic example of short-sighted planning: We figure wild tilapia is good so let’s farm-raise the heck out them. But we have to keep prices down, so we’ll feed them cheaply. Then we end up with sub-standard product. We do the exact same thing with our beef, pork, and chicken. Grain-feed livestock have wildly inappropriate Omega-3 to Omega-6 ratios. If this topic is foreign to you, then you DEFINITELY need to check out this University of Maryland link on Omega-3’s.
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