Changing the diet of cows can reduce saturated fat in milk, according tomedia reports. A new study on human clinical trials suggests that these naturally “healthier” dairy products have a positive effect on heart health, but some experts say the benefits of the new type of cheese, butter and dairy products are limited at best.
Scientists have known that changing the diet of cows can reduce the amount of saturated fat in milk. In this case, adding an sunflower oil to the animal’s diet can make milk contain more healthy monounsaturated fat and lower in saturated fat.
“Dairy products contain saturated fat, and high intake is associated with increased cardiovascular disease events such as heart attacks,” explains Julie Lovegrove of the University of Reading, who is also one of the co-authors of the new study. This may be because dairy products contain other beneficial ingredients such as protein and calcium. By replacing a quarter of the saturated fat in milk with monounsaturated fats, we have been able to naturally produce healthier dairy products. “
The new study is one of the first to test the health benefits of this modified dairy product under rigorous clinical trials. Fifty-four subjects classified as having a moderate risk of cardiovascular disease were recruited for the study.
After 12 weeks, the researchers found that subjects who ate high standards of dairy products had an average 5.5 percent increase in blood LDL cholesterol levels compared to subjects who ate genetically modified dairy products.
“We are pleased to see that our study shows that naturally low-saturated fat dairy products have a positive effect on blood LDL cholesterol levels and vascular health compared to traditional dairy products,” Lovegrove said. “
While some experts who did not participate in the study praised it as rigorous and instructive, others questioned its clinical significance. Duane Mellor, from Aston University, points out that the study may be academically interesting but it is not clear how meaningful the results will mean to humans in the real world.
Hugo Pedder, from the University of Bristol, confirmed the findings, saying they were promising, but cautioned at some of the limitations of the pilot design. “The trial was relatively short-lived and the effects of improved diet on cardiovascular disease were measured only by investigating blood markers. We are not sure whether this will have a meaningful beneficial effect on cardiovascular health in the long run. “
Previous studies have shown that small interventions in livestock feed can significantly improve methane emissions. Ian Givens, director of the Institute of Food, Nutrition and Health at the University of Reading, said the new study was further evidence that small dietary interventions on animals can lead to healthier, greener dairy products.