For many people in northern latitudes (e.g. the UK) the time is running out until we are unable to get Vitamin D from the Sun. This website can calculate how lo

For many people in northern latitudes (e.g. the UK) the time is running out until we are unable to get Vitamin D from the Sun. This website can calculate how long we need to be in the sun. I think that from November to beginning of March it's not possible to get enough Vit D from the Sun.