Q: I’ve been hearing a lot recently about how dangerous radon gas can be. I purchased a test kit for my home, but I don’t know what levels are considered high. Could you please explain safe radon ...

A joint investigation by Consumer Reports and Yuka has measured the levels of eight controversial additives in 40 widely ...

The Council for Responsible Nutrition has completed an updated evaluation of magnesium safety, raising its recommended safe upper level for supplements to 500 milligrams per day for healthy adults, ...