5 Common Symptoms of Vitamin D Deficiency

Over 40% of adults in the US have vitamin D deficiency, according to a 2011 study. It is estimated that about 1 billion people worldwide are deficient. In this video we’re looking at the 5 biggest symptoms linked with low vitamin D levels.

Studies mentioned:
STUDY 1: https://www.ncbi.nlm.nih.gov/pubmed/21206551
STUDY 2: https://www.ncbi.nlm.nih.gov/pubmed/23511484
STUDY 3: https://www.ncbi.nlm.nih.gov/pubmed/26755458
STUDY 4: https://www.ncbi.nlm.nih.gov/pubmed/23758943
STUDY 5: https://www.ncbi.nlm.nih.gov/pubmed/21199469
STUDY 6: https://www.ncbi.nlm.nih.gov/pubmed/26022378