DEAR DR. ROACH: I have read that dietary potassium is very important in reducing heart disease risk, along with reducing sodium. I use a potassium-based salt replacement at home. Is there a maximum amount I should use? Why don’t restaurants offer salt substitutes for people who want to reduce sodium and heart risk? — T.S.
ANSWER: I think you are on to something here, although there are some concerns. Most people aren’t using salt substitutes simply because they don’t know salt substitutes exist or that they have the potential to reduce heart attack and stroke.