I teased a libinlaw with that a couple of weeks ago.
“So, I hear butter isn’t bad for you anymore.”
-”well, specifically, it’s the cholesterol that isn’t bad for you”
“Isn’t science amazing? They’re able to change whether something is good for you or bad for you! I just love our super smart scientists - especially the ones that tell everyone to change their lifestyles according to what they KNOW to be true.”
I like saying science has never been wrong except the Spotted Owl, Acid Rain, the Ozone hole and DDT, so we know we can trust them.