I thought it was interesting how this little factoid was kept hidden from us.

My brother it sounds like you ran a million miles per hour away from science.

Here’s a paper that summarises the issue. Perhaps “animal products contain cholesterol” feels new to you but obvious to other people is a generational thing. From the 1960s onwards there was a big push to stop people eating butter, eggs and meat because they contained cholesterol, and high cholesterol in your blood was a bad thing in people.

But by the 1990s the evidence was piling up that there wasn’t a direct link between cholesterol in food and harmful cholesterol in your blood. In fact there are important ‘good’ cholesterol that reduce heart disease risks. And the recommendations to avoid cholesterol and fats in general have been responsible for lots of poor advice and health outcomes, as people replaced natural animal based fats like butter, not with healthy olive oil, but problematic processed fats like margarine and vegetable oil. Or ate low fat food that was high in sugar, which can raise harmful blood cholesterol.

Dietary cholesterol ≠ blood cholesterol

I don’t think anyone was hiding that. I assumed it was pretty common knowledge since I was a kid.

Few notes:

Factoid = Common misbelief often shared as a fact to the point that they had to tweak the meaning of the term because it became a factoid in itself.

There’s also no proven link between dietary cholesterol and blood cholesterol. At least not that I know of.

Most Cholesterol is produced in your liver. Food is a contributor, but not just from animal products.

I thought cholesterol was specifically only made in animals?

What are some plant sources?

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