I’ve now been alive long enough to have gone through three complete turns of...
Coffee and eggs will kill you!
No they won’t!
Yes, they will!
No they won’t!.....
butter margarine
Recall the olive oil scare? Ruined thousands of small farmers from The Lebanon to Greece to Italy. I used it then. Use it now.
Growing up as a child, my mother was always buying margarine and those horrible "Egg Beaters" that poured out of a container that looked like a milk carton because the dimwits on the Today Show would warn her about cholesterol.
Turns out eggs and butter (especially butter from grass-fed cows) actually LOWERS cholesterol and is far more nutritious. I go through 2 dozen eggs a week (just over 3 a day) and my cholesterol has been under 200 for years. When my wife switched her diet over to more meats, eggs and butter, her cholesterol dropped as well.
As for coffee, been drinking it every day for decades. In fact, coffee, beer and wine were the only fluids I drank for years. Only recently did I work some spring water and iced tea into my diet as I can't drink alcohol like I used to. Getting old is a bummer.
Regarding eggs, there's some point there. But that wasn't just an issue with eggs but with the accepted wisdom that eating cholesterol is bad for you. Problem is that was never based on good science, and when the science was done it didn't hold up. But it was apparent all along that it wasn't good science to anyone that looked.
Don’t forget butter. Now butter is back in style.