Forty percent of Americans don’t get enough Vitamin D, and that may be alarming since new research shows lower levels are linked to worse COVID outcomes CoronavirusCOVID-19COVID19immune systemIMMUNITYLinkSunvideoVITAMINvitamin COVID-19Vitamin DvlogYouTubeRelated Posts What Happens When the Immune System Learns to Tolerate COVID? January 6, 2026 What Happens When the Immune System Learns to Tolerate COVID? January 5, 2026 So much #research happening!#covid19 #doctor #themoreyouknow #immunity #virus #antibodytesting January 3, 2026 Immune System vs. Viruses: Can We Ever Win? #shorts December 23, 2025 Probiotics, Immunity & COVID – Why I Waited for the Research December 19, 2025 Did Covid Change Your Brain? Doctor Explains December 17, 2025
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