Assertion: potassium nitrate's use | /r/CapableOf | add a mean of only 87 mg
Facets:
value: among those
type: OTHER
Source sentences:
text: 2013–2014 indicate that 12% of children and adults aged 2 and over use supplements containing potassium, and among those who do, supplement use adds a mean of only 87 mg to total daily potassium intakes .