http://www.journal-inflammation.com/content/11/1/2?utm_content=buffer56ada&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer (http://www.journal-inflammation.com/content/11/1/2?utm_content=buffer56ada&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer)
Interesting - between living in the Northeast and the fact that I cover up due to skin cancer problems, my Vit D levels are always low in spite of supplementation. And yes, I do have idiopathic urticaria. ~)