Listen in to this snippet of an interview with Dr. Michael Holick as he describes the scientific purpose of sunscreen and if you can still make vitamin D while appropriately applying sunscreen to the skin.

Learn more at grassrootshealth.net/sunshine

Key Points

– Sunscreen should absorb both UVA and UVB radiation – with about 97% absorption with SPF of 30. While this may allow someone to be in the sun 30 times longer, it will block vitamin D production

– Sunscreen use definitely blocks the ability to make vitamin D in the skin – one study showed that farmers who were out all summer but wearing sunscreen were still vitamin D deficient at the end of summertime

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