I wasn't allowed off the bed, it was hell. I spent a month in inpatient acute rehabilitation where I was the only non-geriatric. I was told I'd make a full recovery in 4-6months. NIH processed my CSF tap and said it looked like GBS, mayo clinic asked for my blood and is still mapping it out (wierd). UVB is what burns your skin and gives you sunburn so you will have to do the exact opposite of the current advice regarding protecting our skin. In a place like Europe you must be outside (windows block UVB) between approx 12 - 2pm to get any, and if you are wearing sunscreen (which primarily blocks UVB not UVA) you will make none at all. UVA will not produce any vitamin D at all. One more thing: only the midday sun can make vitamin D - it has to be UVB. These days the same people eat very little fish and even less fish oil which is the main reason people in cold places are deficient rather than our move indoors. Traditionally most all people in northern latitudes had a fish based diet - and fish oil would have had enough D3 to keep you going even in the Winter. You have to take a LOT orally to get as much as you would get quite quickly from the sun (our gut is not good at absorbing it) so maybe if you are only getting it from your diet than yeah you need to take it every day of the year. Your skin will automatically stop producing D from sunlight when you have enough also so you can't have too much - whereas D taken orally could build up to toxic levels. Not saying your doc is wrong but vitamin D is stored in your fat deposits, so if you get enough sun in the Summer it should do you through the Winter even without any in your diet. New to reddit? Click here! Get flair in /r/science Previous Science AMA's Repeat or flagrant offenders will be banned.Comments dismissing established findings and fields of science must provide evidence.Criticism of published work should assume basic competence of the researchers and reviewers.Non-professional personal anecdotes will be removed.No off-topic comments, memes, low-effort comments or jokes.
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