That’s big news, considering previous research found that sunscreen can significantly inhibit vitamin D synthesis and that the National Institutes of Health currently recommends up to 30 minutes of unprotected sun exposure at least twice a week. While the bare-skinned group had slightly higher levels of vitamin D at the end of the study, researchers say that the difference between the groups wasn’t significant enough to warrant skipping sunscreen. And as for vitamin D? Both groups’ vitamin D levels soared-a good thing, since this essential nutrient keeps your bones strong, boosts your immunity, fends off depression, and lowers your cancer risk, according to data from the National Institutes of Health. As you would expect, sunscreen helped protect the sunbathers from burns. Half of the participants made sure to properly apply a sunscreen with SPF 15, while the other half hit the beach with bare skin. Play icon The triangle icon that indicates to playįor the study, researchers measured the vitamin D levels of 79 men and women before and after a one-week beach trip to a Spanish island.
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