Yes and no: “Except during the summer months, the skin makes little if any vitamin D from the sun at latitudes above 37 degrees north”[1]. Also everybody’s pr

Yes and no: “Except during the summer months, the skin makes little if any vitamin D from the sun at latitudes above 37 degrees north”[1]. Also everybody’s production of vitamin D is different. There are plenty of people who work outside all day and still have insufficient levels. [1] https://www.health.harvard.edu/staying-healthy/time-for-more-vitamin-d https://www.health.harvard.edu/staying-healthy/time-for-more...