Prairie Fare: Wintry days and the vitamin D dilemma

Vitamin D helps our immune system fend off bacteria and viruses, and it helps our nerves fire and our muscles contract.We were seated at a sunny table in a restaurant recently. Brightness on a cold winter day always boosts people’s moods. When I sat in the booth, unfortunately, the sun was lasering my eyes. All the tables were full, so we could not move to a different spot. The window ...