1.例如，壹位65歲的婦女每天的飲食如下:
早餐:壹杯鮮奶(200g)和壹個饅頭(小麥標準面粉100g)；
中餐:米飯(粳米，100g)，豬肉芹菜(豬腿100g，芹菜250g，醬油10g，大豆油6g，鹽2g)；
晚餐:米飯(粳米，標壹100g)，生菜豆腐湯(生菜100g，豆腐100g，大豆油6g，鹽2g)，清蒸鱸魚(200g)。
食用食物成分表(100g食用部分含量)，如圖。
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1.根據上面的食譜，計算受試者每天的能量和營養素攝入量:
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2.膳食能量和各種營養素的攝入:
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從數據中可以看出，蛋白質中能量、鈣、鐵的攝入偏高，維生素A、B1、C的攝入缺乏，尤其是維生素C。
3.三種營養素的能量供應比例:
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蛋白質供能比例高，碳水化合物供能比例低。
4、三餐能量分配比例:
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基本合理，晚餐攝入的能量略高，早餐和午餐攝入的能量略低。
5.優質蛋白比例:
優質蛋白的比例=(動物蛋白+豆類蛋白)/總蛋白=(6+17.9+8.1+21.6)/83.7×100% = 64.0%，超過30%，所以優質蛋白的攝入是充足的。