Please consider supplementing your diet with vitamin D3. The level of vitamin D in the blood is correlated with disease outcomes and acute respiratory infections. To learn more, please visit the Linus Pauling Institute’s Vitamin D page, which summarizes a number of clinical studies.
The Linus Pauling Institute recommends that generally healthy adults take 2,000 IU (50 μg) per day. They state that a tolerable upper limit for adults 19 and older is 4,000 IU (100 μg) per day.
Of course, I’m not a doctor. Vitamin D levels are affected by exposure to sunlight, skin color and diet. You may wish to discuss this with your doctor and get a test to determine the level of vitamin D in your blood.
Recent studies show that vitamin D is important in the prevention and treatment of COVID-19. Please watch Dr. John Campbell’s recent YouTube video called Winter Vitamin D Update for more information.
Winter Vitamin D Update on YouTube.