Vitamins C and D are significantly necessary in your immune system. Studies show that a deficiency in either of these nutritional vitamins causes impaired immunity and higher susceptibility to an infection, including the flu and upper respiratory tract infections. Supplementation with vitamin C appears to both help prevent and deal with respiratory and systemic infections, together with coronavirus-sort infections.1 The beneficial dose of vitamin C is 1,000 mg a day. Because vitamin C is water-soluble and doesn’t retailer in the body, consultants recommend 1,000 mg as much as three times a day, particularly when your immune system is challenged.
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