Comment by drgoodvibe

Everyone is built different. 4 years ago my bloodwork came back with an extremely low level of Vit D (so low the dr. Said they’ve never seen it that low. I live in Canada and work in an office so not a big surprise. But the severity and frequency of flu/colds lead me to investigate further including doing a genetic test. Turns out I am genetically predisposed to low vit d absorption. With dr supervision I began megadosing 4-5000 IUs daily. As of my latest bloodwork which was 3 weeks ago my vit. D is still just below average. What I have noticed is that the severity and frequency of my cold/flu is much lower than what it was pre-dosing. I know this is not placebo because often in the past if I got the flu it would lead to pneumonia. Since dosing I have not had a single case of it. My 2 cents N=1.