Hi Harrie,
Vegetable oils are used to some extent in some form in most processed foods. Labels do not list the Omega 3 and 6.
Grain fed animals likely the same imbalances as we have, which adds to the problem.
They also breed low Omega 3 grains and take Omega 3 out of oils as processed foods will keep longer.
As the most commonly used oils are high in Omega 6 and industrial processing takes out Omega 3 then most foods with vegetable oils will be high in Omega Six depending on the amount used.
We are seeing that in Omega 6 in the body fat which has increased very significantly in the last 40 years.
One of my cries is for better labelling.
This a useful site.
nutritiondata.com
Others are listed on my resource page.
http://www.omegasixthedevilsfat.com/resources.aspx