It's been surprising for me to see that a majority of users who come to SuppFinder.com from google search are looking for information on Vitamin D and Vitamin D deficiency symptoms.
Because they're so easy to understand and inherently shareable, I've included below 3 infographics that I think provide you important information about the benefits of Vitamin D, some (unfortunate) statistics about Vitamin D deficiency (75% of Americans are deficient), and the symptoms of Vitamin D deficiency.
(If you have trouble reading the infographic, clicking on it will re-open it in a new window at a larger size.)