Q. You recently pointed out the importance of balancing potassium and sodium intake. They already add iodine, fluoride and/or iron to table salt. Why is there no potassium-enriched table salt?
A. Actually, there is (sort of). Low-sodium salt substitutes are usually made with potassium chloride, a mineral salt formed from potassium instead of sodium. Potassium chloride tastes salty, but can have a bitter or metallic aftertaste. On the plus side, a quarter teaspoon contains 650 mg of potassium!
See also: The Great Salt Debate