A study has found that organic milk may contain a better balance of omega-3 and omega-6 fatty acids than conventional milk. Both types of fatty acids are essential, but it is the omega-3 fatty acids that may have beneficial health effects, like preventing heart disease and lowering inflammation. The typical western diet is low in omega-3 fatty acids, which are found in oily fish and some nuts and seeds, like flaxseed. Claims that pasture raised meats and animal products contain larger concentrations of omega-3 fatty acids compared to grain-fed animals have been made, but this study published in PLoS One is the most clear example to date. In the study, samples of organic and conventional whole fat milk sourced from around the country were analyzed. Organic milk was found to contain 62 percent more omega-3 and 25 percent less omega-6 fatty acids than conventional milk. The study’s authors conclude that drinking the recommended servings of organic whole milk everyday would improve the ratio of omega-3 and omega-6 fatty acids in the blood, decreasing heart disease risk.
To read more about this study, as well as about why some prominent nutrition scientists question the conclusions of this study check out the article at The New York Times.