For people who are constantly on the go, nutrition bars can offer a quick, conventient, and easily portable source of calories and nutrition (because nothing good comes from being hangry in a meeting). However, according to WebMD, "not all bars are created equal." Registered Dietitian Dawn Jackson, spokeswoman for the American Dietetic Association, agrees with this idea, telling WebMD that "some of the bars have as much sugar and as much saturated fat as a candy bar.