British v American recommended daily amounts
I am enjoying using Cronometer. As I live in Britain, I've noticed that the NHS's recommendations for vitamins and minerals are different from those in Cronometer (which are understandably based on American recommendations).
There is an interactive website here: https://www.nhs.uk/conditions/vitamins-and-minerals/others/
You can see all the NHS's dietary recommendations in one go here: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/618167/government_dietary_recommendations.pdf
To take one example for a 34-year-old male (e.g. me), the NHS recommends 3500mg of potassium per day whereas Cronometer recommends 4700mg of potassium per day.
Why is there this difference? I can imagine that the climate of a country might require some change in requirements, but I cannot understand why the change between the UK and USA would be so much for potassium.