Didn't 'studies' proclaim the benefits of polyunsaturated fats like margarine over butter in the 70s and 80s and then go and reverse position recently? Conside

Didn't 'studies' proclaim the benefits of polyunsaturated fats like margarine over butter in the 70s and 80s and then go and reverse position recently? Considering the amount of 'bad' science about (poor quality studies or those with an agenda) I think there's a lot to be said for common sense. Good quality food, as close to its natural form as possible, eat it in moderation and exercise accordingly.