I Andalusien i Spanien har man börjat ge gamla en mer potent form av vitamin D, calcifediol. Den form vi äter som tillskott i Sverige, kallas D3, måste först omvandlas i levern till calcifediol, innan den kan tas upp av kroppen. Gamla människor, överviktiga samt personer med olika leversjukdomar, har oftast en nedsatt kapacitet för att göra denna omvandling i levern. Det är troligen anledningen till att vissa studier inte visar positiva resultat för tillskott av vitamin D, när det gäller Covid. Andra anledningar kan vara för låga doser eller för kort tid så att nivåerna inte når tillräckligt höga nivåer.
As the death rate per million climbs month by month, from 175 in November to 324 now, the strategy certainly is not working as well as we would hope. Compare that with the province of Andalusia, a Spanish province of more than 8 million people. It started in November with a situation worse than ours—189 deaths per million as against 175—but which cut its death rate by at least two thirds while ours was doubling. That reduction, from between 50 and 70 deaths a day in November to between five and 15 deaths a day currently, started immediately after it initiated a programme of issuing
calcifediol, the fast-acting high potency form of vitamin D, to at risk groups including care home residents.
https://www.theyworkforyou.com/debates/?id=2021-01-14b.593.0&p=10162