Throughout history, nuts have been a staple food providing energy, pro
tein, essential fatty acids, vitamins, and minerals. Today, nuts are c
lassified as part of the USDA Food Guide Pyramid's Meat/Meat Alternate
Group. Foods in this group contribute protein as well as important vi
tamins and minerals to the diet. Nuts are also being studied for their
potential health benefits. Research suggests that there may be a conn
ection between frequent nut consumption and a reduced incidence of cor
onary heart disease. Thus, tradition and promising scientific evidence
combine to support the role of nuts in healthful eating.