Cholesterol is the main thing as it is the number one culprit for chronic heart deseases. Chicken, beef, fish, etc. Eggs however are the biggest influencers as there is a shit ton of cholesterol in egg yolks. It's illegal for the food industry to lable eggs as 'healthy'.
I eat meat and I love meat. But I do avoid egg yolks and use egg beaters instead. I do have days within the week I stick to plant based meals.
Could you imagine McDonald's, Buger King, Pizza hut, and every other major franchise shutting down