天美传媒

Abstract

Magnitude of the gap between current intakes and the Pyramid recommendations suggests the need for continued increases in agricultural productivity, higher resource use, and greater levels of international trade if the gap is to be closed. If current dietary patterns are maintained in each category of age, sex, and ethnicity, then we project substantial future increases in the gap at the aggregate food supply level for most food groups. However, studies have consistently shown that there is a significant gap between actual food intakes and the recommendations outlined in these guidelines, with far-reaching ramifications for both individuals and the food system as a whole.