I've seen several figures for maximum dangerous dose, starting from 4,000 IU I think as extreme high but just about safe temporarily. The capsules I got were 5,000 IU and I took them for several months. I've cut down on them now though after reading stuff on here.
I've also seen recommended dose (400 IU?) is twice the rda. Also that vitamin K is good to take at the same time to help absorb it (although someone again on here said that was information from the vitamin k manufacturer) or that milk is good from
geminisnake as I recall because vitamin D is fat soluble. (Also dosage should really now be given in micrograms mcg rather than IU but I forget what that is
)
Dangers of too much were posted up here a couple of days ago - including things like kidney damage and leaching calcium from bones. Eta although that's very high doses for extended period of time.
Sorry - someone will doubtless come along with the correct figures but those three areas seem like the important things.
Sorry its taken so long to get back to you but I've got things a bit more organised you'll be happy to hear - The RDA is miniscule, its was estblaished to set the levels for children to acoid rickets - even my GP admitted that when I asked her. She said she took it but said she could not tell me what she took as that would constitute advice when her and my condtions were different.......All true, but just sticking to the NHS guidelines. OK, so we have to dig:- "At noon in Miami, someone with Fitzpatrick skin type III would require 6 minutes to synthesize 1000 IU International units)of vitamin D in the summer and 15 minutes in the winter."(
NEJM Journal Watch: Summaries of and commentary on original medical and scientific articles from key medical journals) Running about or lying down the sun in yer swimmies in summer you get C 4k IU per hour, so on an average sunny afternoon on hols in say Spain you'll get between c 16k - 20k IU. LOts of people do this every year, millions in fact, I have never seen nor can I find on the net, any cases of Vit D OD. In INdia they were giving people 60kIU muscular injection, as have at least one of morfe people posting on this thread - no reports of adverse reactions let alone OD. Dr Anthony Fauci the US infectious diseases expert takesm and has been taking 6k IU per day since late Jan/Feb - he is still with us and seems perfectly healthy. I have been taking 4k IU per day since Feb - so far no probs - as have lots of others on this thread. It is fat soluable so simply eat them after a meal, it needs very little fat, you dont have to neck packets of butter with it to make sure it works - you've probably read all of this on the other posts by now, but you didn't deluge me with Spice Girls puns even though the opportuinty was huge and tempting (well to me it would have been
) for that I owe you one (also that was a well sweet piss take, posting one of by doubles and attaching it to my "Cant find another thread like this" - loved and laffed like a drain- blinding shot Sir, blinding....Some linky bits:-
Office of Dietary Supplements - Vitamin D - still focused on bone health, it does admit to other benefits useful
“Effect of calcifediol treatment and best available therapy versus best available therapy on intensive care unit admission and mortality among patients hospitalized for COVID-19: A pilot randomized clinical study” This is the only small scale randomish trial we have to date, ther are observational studies based on care home that regularly took blood from the patients to monitor health, rather dense but the bootm line is 76 patients, 50 got Calcifediol or equivalent ( Calcifediol is the activated form of Vit D after both the liver and liver add differnt hydroxyl groups, meaning that it can be used by the body instantly - Vit D tabs take several days to progress thru this process) 26 got the best clinical care but no Vit D. Of the 50 given the activated Vit D, only one needed ICU treatment, none died. Of the 26 not given it, 13(50%) needed ICU treament, 2 of them died
“Effect of calcifediol treatment and best available therapy versus best available therapy on intensive care unit admission and mortality among patients hospitalized for COVID-19: A pilot randomized clinical study”
Since this trial the Govt of Andulucia have mandated the activated Vit D and their death nubers have dropped dramatically form near 70 per day, to the most recent :- "There have been 94 deaths in Andalucia in last seven days. The total for the pandemic is 5.578. "
Coronavirus in Andalucia, News and Statistics | Andalucia.com There has also been public health camapigns to make people aware and getting to take Vit D suppliments to reduceb the risk of contracting it in the first place " Confirmed cases that required hospital admission in Andalucia in the last seven days number 723, the total admissions for the pandemic is 25.368 Confirmed cases that required intensive care admission in Andalucia in last seven days was 39 the total for the pandemic is 2.524. " Same source
They are safe to eat and it appers very effective, cheap and possibly, life saving