With potassium the estimates of consumption by the general population seemed not to make sense given the sources; the amount of potassium in the RDI is quite large, and unless you eat certain particular foods it’s very hard to hit it without explicitly setting out to do so.
Belated answer: same reason many people have a magnesium deficiency. These are both minerals whose presence in food is highly dependent on their presence in soil. Soil depletion = far less potassium and magnesium in our diets.
With potassium the estimates of consumption by the general population seemed not to make sense given the sources; the amount of potassium in the RDI is quite large, and unless you eat certain particular foods it’s very hard to hit it without explicitly setting out to do so.
Belated answer: same reason many people have a magnesium deficiency. These are both minerals whose presence in food is highly dependent on their presence in soil. Soil depletion = far less potassium and magnesium in our diets.