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In summer, fewer Austrians tend to think regarding vitamin D deficiency. In contrast to the darker months of the year, there is a larger time window for a short walk in daylight to soak up the necessary dose of sun. To put it simply, vitamin D3 is formed when UV light converts a precursor, provitamin D3. Depending on skin type and time of year, five to twenty minutes in the sun should be enough with your face and arms uncovered.
