英语翻译不饱和脂肪酸中不饱和程度越高，双键越多，营养价值也就越高。DHA/EPA是天然存在的多不饱和脂肪酸中含双键最多的

Fatty acids unsaturated degree is higher,the double bond number,nutritional value is higher also.DHA / EPA is the natural existence of polyunsaturated fatty acids containing double bond most,but also on the land is very difficult to find bioactive substances.Marine fish contain higher content of DHA / EPA,these two kinds of substances in human brain and retinal structure play a decisive role.With the progress of science and technology,more and more people on the DHA / EPA has a new awareness,especially in the cardiovascular and cerebrovascular disease prevention and enhance immunity plays an irreplaceable role.

The higher the level of unsaturation and double bonds in unsaturated fatty acids, the more value of the nutrition. It is the most content of double bonds of polyunsaturated fatty acids in natural DHA...

The unsaturated fatty acid in the higher level of unsaturated, et cetera, the more nutrition value and the high. DHA/EPA is natural existence of polyunsaturated fatty acids containing the double bond ...