The body can producevitamin Don its own.

Can you get vitamin D through a window?

Can you get vitamin D through a window?

Emily Kelleher

“Window glass absorbs all UVB radiation.

She notes also thatan SPFof just 15 can slash vitamin D productionby over 90%6.

(And to be clear: We are fans of smart and intentionalsun protection practices.)

Emma Engler, M.S.

Season and location can limit vitamin D production even more severely.

So, the answer is noyou can’t get vitamin D through a window.

Native food sources of vitamin D3 include somefatty fishlike salmon, for example.

But racial inequities clearly exist, with82% of Black Americans12and nearly70% of Latino Americans12experiencing D deficiency.

With this in mind, Holick recommends all his clients take avitamin D supplementdaily, no matter the season.

So, that means that for achieve 50 ng/ml, you need5,000 IU of vitamin D per day.”

Too much, one would be fair to argue.

Check out ourvitamin D supplement roundup.)

Why is vitamin D important?

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22 Sources