![The People's Pharmacy show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/029/149/small/the-people-s-pharmacy.jpg)
Summary: Scientists have long suspected that vitamin D is crucial for the immune system to function properly. Presumably, that is why cod liver oil was utilized as a tonic to ward off colds and flu in northern climes. After all, as you get farther from the equator, you get less sunshine during the winter. Consequently, you […]