Information de reference pour ce titreAccession Number: | 00009862-201404002-00030.
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Author: | Kranz, S. 1; Hill, A. M. 2,3; Fleming, J. A. 2; Hartman, T. J. 2,4; West, S. G. 2,5; Kris-Etherton, P. M. 2
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Institution: | (1)Department of Nutrition Science, Purdue University, West Lafayette, IN, USA (2)Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA (3)Nutritional Physiology Research Centre, University of South Australia, Adelaide, SA, Australia (4)Department of Epidemiology, Emory University, Atlanta, GA, USA (5)Department of Biobehavioral Health, Pennsylvania State University, University Park, PA, USA
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Title: | |
Source: | Journal of Human Nutrition & Dietetics. 27 (Supplement 2):247-254, April 2014.
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Abstract: | Background: Dietary guidance issued by various global government agencies recommends nut consumption within the context of a healthy-eating pattern. Nuts are nutrient dense and may promote nutrient adequacy. As an energy-dense food, nuts must replace other foods in the diet to prevent an excess of calories.
Methods: We evaluated how recommending the inclusion of walnuts (75 g day-1) in the diet affected energy and nutrient intake in men (45-75 years; mean body mass index = 27.6 kg m-2; n = 19) at risk for developing prostate cancer. Guidance was provided about incorporating walnuts isocalorically in a healthy diet. Three-day food records and body weight were collected at baseline and after two 8-week diet periods (usual versus walnut supplement diets).
Results: Energy intake on the walnut supplement diet exceeded the usual diet, although body weight was maintained. Energy intake was lower on the actual walnut supplement diet than the calculated walnut diet [10 865 kJ (2595 kcal) versus 11 325 kJ (2705 kcal) per day, respectively] and contributed 23% less energy than 75 g of walnuts. Approximately, 86% and 85% of the total fat and saturated fatty acids from walnuts were not displaced, whereas the increase in fibre from the usual diet to the actual walnut supplement diet represented less than one-half (39%) of the fibre provided by 75 g of walnuts. Walnuts were substituted, in part, for other foods, and the nutrient profile of the diet was improved, however, the beneficial effect of walnuts on the diet quality was not optimized.
Conclusions: Individuals do not optimally implement food-based guidance. Consequently, nutrition professionals play a key role in teaching the implementation of food-based recommendations.
(C) 2014 John Wiley & Sons, Ltd
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Author Keywords: | energy compensation; food displacement; walnut supplementation.
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Language: | English.
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Document Type: | Research Paper: The British Dietetic Association Ltd and Wiley have published this supplement without financial support; NUTRITIONAL SCIENCE.
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Journal Subset: | Clinical Medicine.
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ISSN: | 0952-3871
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NLM Journal Code: | d1s, 8904840
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DOI Number: | https://dx.doi.org/10.1111/jhn.1...- ouverture dans une nouvelle fenêtre
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