It's about the amount people in general use as an everyday cooking oil like sunflower, corn, soy and canola and pretty much all the fats in processed and ultra processed foods are seed oils as well and when all these are added up, the portion of dietary fat consumed by Americans in general are seed oils which is a basic and profound health risk and not an individual seed oil consumed rarely, like a sesame oil, as an example.
Seed oils are omega 6's which are basically pro inflammatory and in an environment where there's an abundance of omega 6's compared to omega 3's which are anti inflammatory it creates an inflammatory response and when these oils are consumed daily they also create more of a chronic inflammatory environment from that continued consumption.
That balance of omega6/3 should be anywhere from a 1:1 to a 4:1 ration but the average American is around a 20:1 ratio and higher, 30:1 is quite common as well in some demographics.
Here's a decent explanation from one of my normal sources.
"Omega-3 and omega-6 fatty acids are converted into longer-chain metabolites through a series of enzymatic reactions. These metabolites play crucial roles in the body:
Omega-3 Fatty Acids:
- Eicosapentaenoic Acid (EPA): Has anti-inflammatory properties and supports heart health.
- Docosahexaenoic Acid (DHA): Essential for brain function, eye health, and reducing inflammation.
Omega-6 Fatty Acids:
- Arachidonic Acid (AA): Precursor for pro-inflammatory eicosanoids but also necessary for proper immune function.
- Dihomo-gamma-linolenic Acid (DGLA): Can produce both pro-inflammatory and anti-inflammatory compounds, depending on the pathways activated.
The balance between these metabolites is critical for maintaining overall health and preventing chronic inflammation."
Hope this makes sense now. If you have an questions, just ask.