Time needed outdoors across the day in winter to meet the daily vitamin D requirement

Based on the upper limit required with 35% or 10% body surface area exposed, depending on the likelihood of wearing cold weather outfits. Note: Times of 5 minutes represents a range of 0-5 minutes

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Note: Values are the average of the three months within the season. Exposure based on Fitzpatrick skin types 1 to 4, which are at high to intermediate risk of skin cancer. 35% body surface area are for wearing trousers/skirt to mid-thigh and short-sleeved shirt, 10% for wearing full-length trousers/skirt and sleeves to the elbow.
Chart: The ConversationSource: Australian Skin and Skin Cancer Research CentreGet the dataEmbedDownload imageCreated with Datawrapper