[Ellendra]

“...just 20 minutes in the summer sun is enough to deplete all the cholesterol in the skin necessary for the production of D.”

I don’t understand that statement.

Cholesterol is what the skin uses to make vitamin D. Its kinda cool, really. The two molecules are the same except for the position of a single bond, but they have such different effects.

Cholesterol:


Vitamin D:

[Magic Fingers]

“Cholesterol is what the skin uses to make vitamin D.”

I’m aware of that (zoology major, chemistry minor, postgraduate research in molecular biology and genetics). What I don’t understand is his statement that “20 minutes in the summer sun is enough to deplete all the cholesterol in the skin necessary for the production of D”, and then he goes on to encourage more sun exposure. That’s contradictory.

[null and void]

Cholesterol:

Vitamin D:

Annnnnndddd:

Testosterone....