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.

Could Zinc Help Fight COVID-19? - WebMD

COVID-19: Poor outcomes in patients with zinc deficiency - PubMed (

VItamin D

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

Vitamin D | COVID-19 Treatment Guidelines (

What to Know About Vitamin D and COVID-19 (

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

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

Fighting Covid-19: Vitamin D, Magnesium, Vitamin B12 –

Vitamin C

Can Vitamin C Protect You from COVID-19? (

Lacking Vitamin C Increases Your Risk of Severe COVID, Study Says (

Vitamins to help fight COVID - and some might surprise you! (