Health Promotion and Maintenance Q 66

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Nurse Maureen is aware that a client who has been diagnosed with chronic renal failure recognizes an adequate amount of high-biological-value protein when the food the client selected from the menu was:

  

     A. Raw carrots

     B. Apple juice

     C. Whole wheat bread

     D. Cottage cheese

    

    

Correct Answer: D. Cottage cheese

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One cup of cottage cheese contains approximately 225 calories, 27 g of protein, 9 g of fat, 30 mg cholesterol, and 6 g of carbohydrate. Proteins of high biological value (HBV) contain optimal levels of amino acids essential for life. In general, proteins from animal sources have a higher biological value than proteins from plant sources. Animal sources of protein are meat, poultry, fish, eggs, milk, cheese and yogurt, and they provide high biological value proteins.

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Option A: Raw carrots are rich in beta-carotene and sodium. Plants, legumes, grains, nuts, seeds and vegetables provide low biological value proteins.

Option B: Apple juice is rich in carbohydrates and fiber. Omnivorous diets (containing foods derived from animals and plants) in the developed world provide adequate amounts of protein. However, subgroups of the population who avoid all foods of animal origin may have difficulties in meeting their protein requirements.

Option C: Whole wheat bread contains high amounts of fiber and carbohydrates. However, as the limiting amino acid tends to be different in different vegetable proteins, combination of vegetable sources of proteins in the same meal (e.g. legumes or pulses with cereals), can result in a mix of higher biological value. These combinations are generally found in traditional culinary recipes from the different continents (e.g. beans with rice/pasta/manioc, chick-peas with bread, lentils with potatoes, etc).

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