A new study claims “natural trans-fats” may be good for us. I know. It sounds insane! Susan Bowerman of The Los Angeles Times reports:
It's not clear what this finding means for humans. First, the study was done in rats -- the researchers say they're planning some human clinical trials with vaccenic acid supplementation. Second, because the study diets were supplemented with vaccenic acid, the amounts the rats ate relative to their body weight was more than we would naturally eat in our usual diet.Okay, you should remember that trans-fat is NOT healthy. Its crap used to extend junk foods self life. Dr. Fuhrman explains:
The study is in line with other reports that natural trans fats have different effects on the body than the industrially created ones.
Most of the trans fats we eat -- by far -- come from partially hydrogenated vegetable oils, produced from liquid oils by industrial processing to create a firmer fat. Others occur naturally in milk products, formed in the rumen (or first stomach) of ruminant animals such as cows, goats, sheep and yaks when they're fed a grass-rich diet.
Several studies of large populations have looked at the link between trans fatty acid intake and risk of developing atherosclerosis, and all have shown that the risk goes up only with the intake of "industrial" trans fatty acids, not the natural ones. Several clinical trials -- in which people were fed special diets for weeks or months -- have shown that manufactured trans fats raise LDL cholesterol levels to the same degree as saturated fats, and also lead to lower levels of the good, or HDL, cholesterol. It's been estimated that it takes only about 12 grams of manmade trans fats to see this effect.
Hydrogenation is a process of adding hydrogen molecules to unsaturated fats which makes plant oils that are liquid at room temperature, solidify. An example is margarine. These fats are also called trans fats. The hardening of the fat extends its shelf life so that the oil can by used over and over again to fry potatoes in a fast food restaurant or be added to processed foods, such as crackers and cookies. While hydrogenation does not make the fat completely saturated, it creates trans-fatty acids, which act like saturated fats. These fats raise cholesterol and increasing evidence is accumulating demonstrating the harmful nature of these man-made fats and their relation to both cancer and heart disease. Avoid all foods whose ingredients contain partially hydrogenated or hydrogenated oils.Now, I asked Dr. Fuhrman about this yak study and here’s what he had to say. Take a look:
The information does not translate into any recommendation/benefits for humans, so I think this is generally worthless information. I am just thrilled that now I know that Yak milk cheese is better for rats than cow's milk cheese.You won’t find me yak farming on the slopes of Tibet anytime soon.