Friend or Foe? I have completed my review of some 15 studies (some of which studied the studies), with results dating from 2004 to 2015 and including hundreds of thousands of people observed over long periods of time (20 years seems to be the gold standard). I can say this: saturated fats are certainly not a foe. The fats caused no increase in heart or vascular events for the eaters of butter, eggs, red meat, cheese and milk compared to the control group that ate very little of those good foods.
Want even better news? Polyunsaturated fats, such as found in Omega-3 foods such as ours, actually reduced the chance of heart events compared to the general population. LDL went down and HDL went up.
So, I think we are making progress despite the strength of the agenda-minded folks out there in returning to sensibilities about our food. One thing I want to add is this: the benefit of eating your meat and dairy is greatly enhanced by plant food appearing next to it. All food works together. Eat like the octogenarian, Thomas Jefferson, recommended. A meat accompanied by fresh vegetables and a fruit. Each in roughly equal volume to the other.