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Environment

Caution On Potassium

September 8, 2014 | APPEARED IN VOLUME 92, ISSUE 36

Thank you for the article on the Food & Drug Administration’s proposal to revise food labels (C&EN, July 28, page 26).

Inclusion of potassium on such labels is probably a good idea. However, the label should contain a warning that high-potassium foods should be avoided by people with chronic kidney disease. Similar to the possibility of manufacturers hiking vitamin D values artificially to encourage sales, potassium can be escalated as well with preservatives such as potassium sorbate.

Richard Stamets
Willoughby, Ohio

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