The Institute of Shortening and Edible Oils (ISEO)

In the field of of obscure organisations with unlikely-sounding names, my favourites are the Institute of Measurement and Control, which sounds a bit like a 1984-esque surveillance agency:

https://www.instmc.org/About

And the International Earth Rotation Service, who are responsible for making the planet go round:

https://www.iers.org/IERS/EN/Home/home_node.html

I use polyunsaturated oils to attempt to preserve the wood used for my raised garden beds. While vegetable-oil preserved wood might not be as long-lasting as a modern chemical stain, modern stains have various amounts of heavy metal, which I don't care to put in close proximity to plants I intend to eat. The catalogue has a paint sold for raised beds, but discarded vegetable oil is free.

Paints and stains were traditionally made with linseed oil/soybean oil (and other similar thin oils) because these combine spontaneously with oxygen in the air to form a hard film. Modern stains are made with petroleum distillates.

Dietary polyunsaturated oils facilitate the creation of lipofuscin [0], the age pigment. Dietary polyunsaturated fatty acids also drive lipid peroxidation [1] chain reaction, whereby unstable unsaturated oils combine spontaneously with oxygen in the body to break down in an uncontrolled manner. The end products of lipid peroxidation wreck havoc by combining with proteins to make "fluorescent polymerized compounds" [3], etc. Eating polyunsaturated fat won't make you fluoresce, it'll just make you old prematurely.

The Omega-6 polyunsaturates are especially good for facilitating inflammation, due to their use to create Prostaglandins [2].

I do not consider polyunsatured oils edible, and read labels to avoid them.

[0] https://en.wikipedia.org/wiki/Lipofuscin#Formation_and_turno...

[1] https://en.wikipedia.org/wiki/Lipid_peroxidation

[2] https://en.wikipedia.org/wiki/Prostaglandin

[3] https://europepmc.org/article/med/7001991

Looks like they are a lobbying group. I thought at first (because of the initial "I" in their name) that they were an international body. Edible oils are an important source of calories in most developing countries.

My understanding is that most vegetable oils (other than olive oil and coconut oil) are probably pretty bad for us.

There's a lobbying group in DC specific to ice cream flavors! They also do the real milk slogan.