Anyone who has been following me for a while on Dcomedieta knows that I am not very much in favor of either soy or polyunsaturated fats, namely omega6 and omega3. Today we will see the effects of a diet rich in soybean oil.

ROLE OF POLYUNSATURATED FATTY ACIDS IN OBESITY

Contrary to popular belief, even if some of these fats are essential, we need them in minimal quantities, i.e. 6 to 11% of the total fat consumed in the diet.

Considering that 10% of total fats should be saturated, this means that on average polyunsaturated fats should be consumed in a lower percentage on average, and not more than saturated fats ( data from the World Health Organization ).

This percentage takes into account both omega6 and omega3.

Instead the opposite happens. It has been seen that in the last fifty years the consumption of polyunsaturated fatty acids has drastically increased worldwide, while that of sugar and animal fats such as butter or lard has decreased ( source , source, source ).

And so, while people are worried about sugars and saturated fats for being overweight, the statistics say otherwise. It is not only obesity that has increased, but the consumption of polyunsaturated fatty acids in the diet.

A case? According to this study which focuses on the effects of soybean oil in the diet, no.

Indeed, a group of researchers has found that soybean oil can seriously disrupt metabolism.
This is echoed by dozens and dozens of studies published in recent years, including an important Spanish study that spoke of epigenetic modifications.