j****y
发帖数: 1714 | 1 Polyunsaturated fats are considered healthy because some studies show that
they lower your risk of heart disease.
But there are many types of polyunsaturated fats and they are not all the
same.
Most importantly, we have both Omega-3 fatty acids and Omega-6 fatty acids.
Omega-3s are anti-inflammatory and lower your risk of many diseases related
to inflammation (37). Humans actually need to get Omega-6s and Omega-3s in a
certain ratio. If the ratio is too high in favor of Omega-6, it can cause
problems (38).
By far the biggest sources of Omega-6 in the modern diet are processed seed
and vegetable oils like soybean, corn and sunflower oils.
Throughout evolution, humans never had access to such an abundance of Omega-
6 fats. It is unnatural for the human body.
Research that specifically looks at Omega-6 fatty acids instead of
polyunsaturated fats in general shows that they actually increase the risk
of heart disease (39, 40).
Eat your Omega-3s and consider supplementing with cod fish liver oil, but
avoid the industrial seed and vegetable oils.
Bottom Line: Humans need to get Omega-6 and Omega-3 fats in a certain ratio.
Eating excess Omega-6 from seed oils raises your risk of disease. |
|
