Known as the "sunshine vitamin," vitamin D is among the few rockstar nutrients that have garnered national attention and research funding within the last 10 years. [1] Studies continue to show its effectiveness for promoting normal blood sugar, immune health, and positive mood. [2] [3] [4] Sales of vitamin D supplements have skyrocketed thanks to the surge of coverage in the media concerning this “miracle” nutrient. Despite this, vitamin D remains elusive to many. Inadequate intake of vitamin D has become a problematic issue for people all over the world […]