Because humans evolved eating fats and butter. Grass fed butter is a true superfood. Salmon is good also. You've been given great resources Ian. You're just on outdated info. Not as bad as some. But you're saturated fat knowledge is outdated.
I am a geographer by training hence the geog.
And another great video.
Will their cookbook revolutionise diet? You decid…: http://youtu.be/mazvUejaKaQ