Coming up on this week's episode of the doctor's pharmacy.

When they said avoid saturated fats, you were supposed to replace them with vegetable oils, right?

That was the idea going back to the 1960s.

Hi, I'm K.A. Coroet, one of the producers of the doctor's pharmacy podcast.

We have unfortunately been taught to think that fats and oils are damaging for our health

and lead to things like cardiovascular disease.

But this is not necessarily true.

When it comes to fats, the type of fat we eat matters.

As a society, we've been conditioned to believe that unsaturated fats from vegetable and seed oils are best,

and that butter, large ghee, and other saturated fats are toxic.

In fact, the reverse is true.

Dr. Hyman discussed some of the history behind this misunderstanding with leading science journalist, Nina Tykols.

Well, this is where the food industry does come in a little bit, just to start off this story.

So the vegetable oil industry was kind of born in the early 1900s, right?

The first vegetable oil product was Crisco.

Oh, yeah.

So it used to be that those oils were used for the industrial revolution.

They were used to lubricate machinery, and then they figured out how to harden them to make them,

and they learned how to bleach them and make them look white.

And then they thought, and it was actually proctering gamble that they figured out how to do that.

They were going to make it into a soap.

You know, soap is made from oil, and said they like, hmm, that looks an awful lot like lard.

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