摘要：The average American dietary
style at the beginning of the
21st century resembles an hour
glass rather than the Federal Government¡¯s
Food Guide Pyramid.We
gobble huge amounts of added fats
and sugars from the top tier of the
Pyramid (marked ¡°Use sparingly¡±)
and heaping plates of pasta and
other refined grains from the bottom
tier, but we are sorely lacking
in the vegetables, fruits, low-fat
milk products, and other nutritious
foods in the middle of the Pyramid.
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