Identify and Treat Vitamin D Insufficiency

No column on vitamin D would be complete without addressing sunlight. Ultraviolet light from sun exposuer week of sunshine if they are wearing only diapers, or 2 hours per week if fully clothed. That evidently provides an adequawe recommend sunscreen for people who are outdoors for more than just a short period. If children and teenagers are really out in the summer, when most get exposure, they're using sunscreens that block 95% of the rays. So we have become dependent on diet for our vitamin D, and we're not getting it.