The sun may be shining now, and our vitamin D levels are getting a natural boost but it wasn't long ago we were in the depths of winter, when sunlight was scarce and vitamin D was in short supply.
Now, new research from the University of Bath, University of Birmingham, University of Cambridge and others, published in Advanced Science has revealed that regular, moderate-intensity exercise helps maintain crucial vitamin D levels during the darker months -- even without weight loss or supplements.
