Tanya

It’s a sunny day and you are feeling the sun on your skin, but is it enough to get Vitamin D?

You can get Vitamin D from sunlight but it depends

In the UK you can get vitamin D from sun light if:

1. It is shining directly on your skin so you have to be outside
2. You are not wearing sunscreen
3. The month is April to September in the UK

So the answer is no, you can’t get vitamin D from sunshine if you are sitting inside by the window on a sunny day.

Why can’t I get vitamin D sitting indoors on a sunny day by the window?

Light from the sun is made up of Ultra Violet A (UVA) and Ultra Violet B (UVB) rays. UVB light shining directly on your skin can make vitamin D in your body.

Windows block UVB light and so your body can’t make vitamin D when you are sitting by the window in your house.

Windows block UVB light, the light that can help your body make vitamin D, so you can’t get vitamin D from sunshine sitting indoors by a window.