Naturally occurring trans fats are equally harmful

Naturally occurring trans fats come from ruminants (such as cows and sheep), are found in meat and dairy foods, and are equally harmful as industrially produced trans fat.

 

https://www.who.int/news-room/fact-sheets/detail/trans-fat#:~:text=Naturally%20occurring%20trans%20fats%20come,increases%20in%20trans%20fat%20concentrations.