I’m not a medical expert, nor do I am an expert on the nutrition terms. TLDR: seed oils are toxic, causes cancer and obesity, is high processed (and therefor also subsidized by big food corporations and pharma)

Animal fats have loads of nutrients, civilizations lived of the for thousands of years,..

Just do the research yourself. It’s a deep rabbit hole. If you’ve done the Bitcoin rabbit hole, this is the next one for you! Im sure you will have a critical mindset to question the mainstream things