1. Signs you don’t need Vitamin D supplements but are taking them anyway  Times of India
  2. Scientists study vitamins D2 vs. D3 and make a strange conclusion about which is the better supplement  Earth.com
  3. Pharmacist issues warning to anyone who takes Vitamin D  tyla.com
  4. Vitamin D supplements may lower your level of one type of vitamin D  New Scientist
  5. Vitamin D Vs. D3: Which Is Better for You? Dietitians Explain  AOL.com