Many people have assumed that a lower fat milk is better for them but Eatwild.com reports a study published in the May issue of The Journal of Clinical Nutrition said that full-fat milk is actually better for you as long as it is grassfed. The Journal said that the more grassfed full-fat dairy products people consume the lower their risk of heart attacks will be. This is because 100 percent grassfed dairy products have up to five times more conjugated linoleic acid (CLA) than conventional dairy products. In this study of 3500 people, those with the highest levels of CLA stored in their body tissues had a 50 percent lower risk of heat attack than those with the lowest levels of CLA. The CLA level in milk is lowered by the feeding of even small amounts of grain so consumers should always specify 100 percent grassfed milk products.
Smit, Liesbeth A, Ana Baylin, and Hannia Campos. 2010. Conjugated linoleic acid in adipose tissue and risk of myocardial infarction. The American Journal of Clinical Nutrition. Published ahead of print, May 12, 2010.