For 8 years in a row, the DASH diet has been ranked number one by the U.S. News and World Report as "best overall" among about 40 diets that it reviewed. What is the DASH diet? Well, for starters, DASH stands for Dietary Approaches to Stop Hypertension. It is a dietary approach, along with lowering salt (sodium) consumption to lower blood pressure or even help prevent hypertension from developing. But first, what's a blood pressure? It is the amount of force the blood has a