Q. The nutritionist who works with our spa recently suggested that I recommend probiotics to my clients. What are they, and how do they differ from antibiotics?
A. Defined by a group of experts convened by the Food and Agriculture Organization (FAO) of the United Nations, probiotics are beneficial live bacteria or yeast that, when administered in adequate amounts, produce positive health effects for the host in which they live. The term “probiotic” is taken from the Greek words pro, meaning “for,” and bios, meaning “life.”