Study confirms vitamin D protects against colds and flu — Harvard Gazette
Vitamin D supplements may reduce the duration of the common cold
Terry's Cold Facts + Vitamin D
Low Vitamin D Levels Associated with Colds and Flu | National Institutes of Health (NIH)
Cold days in the sun: How to get kids vitamin D in the winter | Children's Wisconsin
Does vitamin D status have an effect on colds and the flu among GrassrootsHealth participants? - GrassrootsHealth
Does Vitamin D really protect against cold and flu? Latest research findings | 7NEWS
Vitamin D supplements 'the key to beating colds and flu', study finds | The Independent | The Independent
High-dose vitamin D ineffective at preventing kids' colds | CTV News
Combined effect of vitamin D and omega-3 status on colds - GrassrootsHealth
Reduction in Cold and Flu with Vitamin D | VitaminDWiki
Vitamin D Prevents Cold and Flu - Backed By Science : Dr. Zaidi
Vitamin D's immune benefits: Cold, flu and beyond
Incidence of Colds/Influenza After 2,000 IU Vitamin D Daily for One Year | Download Scientific Diagram
Clinical trial finds vitamin D does not ward off colds and flu
Vitamin D pills 'could stop colds or flu' - BBC News
A dose of Immunity Vitamin D, Vitamin C, Quercetin, Bromelain, Zinc, Echinacea, Immune Support cold flu support - Walmart.com
Vitamin D supplements no help for colds, flu | CNN
Study: Vitamin D No Help For Colds : Shots - Health News : NPR
Vitamin D Protects Against Colds and Flu, New Study Finds | Medicine | Sci-News.com
COLD FACTS + D CAPS 60CT – Mt. Angel Vitamins
Vitamin D Prevents Cold and Flu - Backed By Science : Dr. Zaidi
Can vitamin D really help with the common cold?
Don't Forget Vitamin D This Winter Season | Nordic Naturals
Vitamin D as an Important Preventive Against the Flu
