Vitamin D: the New COVID-19 Chloroquine? - Bert Hubert's writings
a day ago
- Vitamin D deficiency is strongly associated with severe COVID-19 outcomes, though it remains unclear if this is causal.
- Supplementing 2000-4000 IU/day of vitamin D3 or sensible sunlight exposure is recommended to avoid deficiency during the pandemic.
- Vitamin D plays key roles in immune regulation, including reducing cytokine storms seen in severe COVID-19.
- Research is polarized: some experts see vitamin D as crucial, others view it as a non-causal marker of health.
- Most randomized trials on vitamin D have been inconclusive, but benefits are clearer in deficient individuals.
- Sunlight exposure is important for overall health, with some studies linking avoidance to risks similar to smoking.
- Vitamin D status varies widely by geography, season, skin color, and lifestyle, complicating research.