Q. When considering the health benefits of peanuts, should they be viewed as legumes or nuts? And is natural peanut butter, with no added ingredients, as healthy as eating plain peanuts?

A. Jeffrey Blumberg, PhD, director of TuftsHNRCA Antioxidants Research Laboratory,replies: Though a legume by botanical classification,the nutrient profile of whole peanuts(including the skin) is more similar to tree nutsthan other legumes. For example, peanuts area good source of monounsaturated fat, niacinand vitamin E, and contain fiber, protein andminerals like magnesium and copper. Thoughmore fat calories may be absorbed from peanutbutter than from the matrix of the whole peanut,it too provides these healthful nutrientsexcept the antioxidant phytochemicals found in
the skin.