Gold's plain "prepared" horseradish is ubiquitous around here, and it only contains horseradish, vinegar, and salt.
Hell - most "dried fruit" aside from raisins, like blueberries, dried cranberries, and so forth, are all swimming in it. Eating those "healthy" kale chips, beet chips, coconut chips? Check how much added sugar and how much omega6 ridden oils they use
Sardines are packed in soybean oil.
If it's not soybean oils, then it's cottonseed, grapseseed, canola, corn oil, or any other number of oils that we have as larger industrial byproducts.
From looking at cooking oils yesterday, you'll see either a mix (soy, canola, olive, etc) or a specific oil (canola) in the ingredients list.
85% estimation: https://www.chowhound.com/food-news/53980/what-vegetables-go...
50% estimation: https://www.youtube.com/watch?v=61QV7ua-kgk
However, if you read the Ingredients, you'll find that most Vegetable oils are composed of mostly, or pure, Soybean Oil.
If it is marked "pure vegetable oil" it essentially always 100% rapeseed.
Rapeseed grows very easily here, and we don't grow soybeans -- they barely grow at all here.
Soya is a notifiable allergen in the UK -- it must be labelled as such when it's in an unrefined form. And even if it's refined, the law still says the origins of oils have to be declared.
The combination of these two things (cost and allergens) means that if an oil has soya on it, you'll know from the front label. Indeed, if it's anything other than rapeseed it'll probably be marketed that way.