| A balanced diet provides an adequate
intake of nutrients for maintenance of the body and therefore good health. A
diet can easily be adequate{{U}} (67) {{/U}}normal body functions, yet
may not be a balanced diet. An ideal human diet{{U}} (68) {{/U}}fat,
protein, and carbohydrates (碳水化合物) in correct{{U}} (69) {{/U}}. The
exact amount vary for each{{U}} (70) {{/U}}because everyone has
different metabolic (新陈代谢的) rates and levels of activity. Malnutrition
results{{U}} (71) {{/U}}an unbalanced diet, this is{{U}} (72)
{{/U}}an excess of some dietary components and{{U}} (73) {{/U}}of
other components. Too much of one component can be as much{{U}} (74)
{{/U}}to the body as too little. Energy is{{U}} (75) {{/U}}by
carbohydrates, fats and proteins. Proteins are primarily used as building blocks
for{{U}} (76) {{/U}}of many body tissues. A. percents B. portions C. proportions D. amounts 我来回答: 提交
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