Windpocken verkrusten nicht?

You again. You’ve been reproached so many times, and you have to be taught. Why do you want to make people sick and leave sick? Don’t you have any conscience?

https://www.dge.de/fileadmin/dok/wissenschaft/stellungnahme/EU07_2012_396_401.qxd.pdf

The various studies show that in the majority of vitamins in Germany, the reference values for nutrient supply [1] are reached or exceeded by individuals living in private households on average, i.e. the supply is sufficient. Exceptions are folate and vitamin D in all ages and vitamin A, vitamin E and vitamin C in certain age groups. In nursing homes, the supply of some B vitamins is also critical (Table 8). Since the vitamin supply of the population can have a large scattering, even in the case of a sufficient intake, as a rule not all persons reach the reference values. As described (see Part 1, Nutrition Review 6/2012) the failure of the reference values is not equal to a deficiency. …

https://www.rki.de/SharedDocs/FAQ/Vitamin_D/Vitamin_D_FAQ-Liste.html?n=13283398

Dangered for a vitamin D deficiency are people who can rarely stay outdoors, for example because they are immobile, chronically ill or need care. This group of persons includes, among other things, very old people, especially those living in nursing homes. Older people, however, are also generally at risk, as the self-producing of vitamin D decreases with age: The observed decrease in self-synthesis probably has to do with the decrease in the skin thickness, and the ability to metabolize vitamin D in liver and kidneys leaves after. In addition, older people usually take less food, so that less vitamin D is also fed via diet.

In addition to older people, infants have an increased risk of a vitamin D deficiency as they should not be exposed to direct sunlight.

People who, for religious or cultural reasons, only go to the open with covered skin, as well as people with darker skin colour are endangered – in the latter, this is due to the higher pigmentation in the skin, which allows less UV radiation. In order to be able to produce enough vitamin D, a longer solar exposure or a higher UV-B intensity is therefore required, which is difficult to achieve in the local widths.

Risk groups include people suffering from chronic gastrointestinal disease, liver or kidney disease or taking medicines that affect vitamin D metabolism (e.g. antiepileptic drugs or cytostatics).