Is milk from grass-fed cows more heart-healthy?
If milk does the heart good, it might do the heart better if it comes from dairy cows grazed on grass instead of on feedlots, according to a new study.
Liesbeth A Smit, Ana Baylin, and Hannia Campos.Conjugated linoleic acid in adipose tissue and risk of myocardial infarction AJCN2010.
Earlier experiments have shown that cows on a diet of fresh grass produce milk with five times as much of an unsaturated fat called conjugated linoleic acid CLA than do cows fed processed grains. Studies in animals have suggested that CLAs can protect the heart, and help in weight loss.
Hannia Campos of the Harvard School of Public Health in Boston and her colleagues found, in a study of 4,000 people, that people with the highest concentrations of CLAs — the top fifth among all participants — had a 49 percent lower risk of heart attack compared to those with the lowest concentrations.
Read more: foodhealthnews.com- Is milk from grass-fed cows more heart-healthy?
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