Salt is a key part of our diets. It's also vital for our survival, as dietitian Lena Beal, MS, RDN, LD and National Spokesperson for the Academy of Nutrition and Dietetics previously told USA TODAY.

DEAR DR. ROACH: I’m a 67-year-old female in pretty good health. The only medications I take are for my thyroid, arthritis and hormone replacement. Early last year, I was sick with a cold/flu for a ...

I am about to undergo gallbladder removal due to recurring pain from gallbladder sludge. Should I be taking replacements for the bile salts that I will no longer be able to produce, and if so, what is ...