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by anpago 2224 days ago
If you live in a country with little daylight for part of the year your going to consider supplements of Vitamin d.

Also pickled herring is a delicacy in the many countries which have fared well in Europe in the fight against covid 19.

Also oily fish like salmon and mackerel are good for vitamin D.

Yet for many Brits it's a fish we rarely consider but is one of the biggest Concerns about the UK denying access to EU nation's to certain waters I believe with Brexit.

https://en.m.wikipedia.org/wiki/Herring_as_food

https://en.m.wikipedia.org/wiki/Pickled_herring