I knew it all the time, fat, red meat and eggs are not that bad for us. But "experts" by pushing a diet based on carbohydrates we have managed to produce a nation with an epidemic of diabetes and obesity. Fat is an important part of a healthy diet. I read a very interesting book titled, Why We Get Fat by Gary Taubes explains that since at least the 50's scientists have known for sure that carbohydrates were the problem, not fats.
Now even Time, who pushed the pyramid, low fat diets for years, is admitting it.