A short YouTube video by Joy Kong, MD arguing that many people are deficient in omega-3 and that vitamin D deficiency—common in winter in Canada due to low sunlight—contributes to increased susceptibility to respiratory viruses during flu season. The speaker links summertime sun exposure to adequate vitamin D and reduced respiratory infection risk.
Most people are omega 3 deficient. And if you look at natural treatments for, you know, for immune function and vitamin D, of course, is a big deal. You know, up here in Canada, where I am, flu season, we're starting to call it vitamin D deficiency season. Because why, why is it you only get the same flu in winter? Why don't you get it in summer? Well, because in summer you got sunshine, you get enough vitamin D, you know, if you spend any time outside, you get enough vitamin D. In winter, the sun is too low, you don't get the vitamin D, you don't get the ultraviolet, so then you don't get the vitamin D. You become prone to respiratory viruses.
