Just look over the past several decades at the news reports

Butter is bad for you. Eat margarine
Margarine bad for you eat real butter

Americans eat too much salt It’s bad for you
Americans eat about the right amount of salt

There are numerous reports like that

It’s no wonder most don’t know what is correct.

I can google a question and get various answers
I get emails on nutrition for diabetes and some contradicts prior emails.

“Socialism only works in two places: Heaven where they don't need it and hell where they already have it.” ― Ronald Reagan