Taking account that this is unproven in humans -- it's enough for me to avoid soybean oil, as cooking oil choice is not very important for my palate.
That said, which oils would you use for frying and baking? Most high smoke point oils are, like soybean, polyunsaturated, so I'd guess that they could have some of the same (proposed) negative effects. Bonus points if the alternative is widely available (I see potential options like avocado oil and ghee, which may not be in my local stores).
Edit:
To clarify, the following oils are ALSO very high in PUFAs and thus might have similar issues to soybean oil: grapeseed, safflower, sunflower, corn, walnut, cottonseed.
Somewhat lower but still fairly high in PUFAs: sesame, canola, peanut.
Finally, some oils are low in PUFAs but not suitable for the same uses as soybean oil. Olive oil is one of these.
That said, which oils would you use for frying and baking? Most high smoke point oils are, like soybean, polyunsaturated, so I'd guess that they could have some of the same (proposed) negative effects. Bonus points if the alternative is widely available (I see potential options like avocado oil and ghee, which may not be in my local stores).
Edit: To clarify, the following oils are ALSO very high in PUFAs and thus might have similar issues to soybean oil: grapeseed, safflower, sunflower, corn, walnut, cottonseed. Somewhat lower but still fairly high in PUFAs: sesame, canola, peanut. Finally, some oils are low in PUFAs but not suitable for the same uses as soybean oil. Olive oil is one of these.