Harvard Heart Letter

Can a salt substitute cause high potassium levels?

Ask the doctor Q. Iím trying to eat less salt and was thinking about trying a salt substitute. But I know these contain potassium, and Iíve heard that too much potassium can be dangerous for your heart. What do you recommend? A. Salt substitutes contain potassium chloride, either alone or mixed with regular salt (sodium chloride). Sometimes called ďliteĒ or low-sodium salt, they are often touted as a way to cut back…

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