I had a thought. Is it possible that the Potassium RDA has been artificially inflated to compensate for the fact that most people’s salt intake is too high? The theory here would be that Sodium and Potassium need to be balanced, and if you can’t stop people taking too much Sodium, maybe you can at least give them more Potassium to match.
I looked into it and apparently the recommendation is that you get at least twice as much P as S (currently searching for a proper source for this), and still higher ratios may be more favourable, at least if you follow Paleo-diet logic. In this light I have changed my spreadsheet to have my target intake of P tied directly to my recipe’s S content, rather than a fixed value. I thought this info may be helpful to those seeking optimum nutrition.