It seems like COVID is more likely due to Vitamin deficiencies rather than anything else

Apparently there are a lot of nutrient decencies, and possible treatments with Vitamin supplements.

Zinc
Could Zinc Help Fight COVID-19? - WebMD

COVID-19: Poor outcomes in patients with zinc deficiency - PubMed (nih.gov)

VItamin D

And this is just sun light, so being quarantined inside might not be helping

Vitamin D | COVID-19 Treatment Guidelines (nih.gov)

What to Know About Vitamin D and COVID-19 (healthline.com)

This Vitamin Could Be ‘Pivotal’ to Your COVID Recovery, New Research Says (msn.com)

Vitamin B
(Vitamin B could help prevent the ‘worst outcomes’ in COVID-19 cases, experts say

Fighting Covid-19: Vitamin D, Magnesium, Vitamin B12 – Covid.us.org

Vitamin C

Can Vitamin C Protect You from COVID-19? (healthline.com)

Lacking Vitamin C Increases Your Risk of Severe COVID, Study Says (bestlifeonline.com)

Vitamins to help fight COVID - and some might surprise you! (wtkr.com)

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