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Nutrient displacement associated with walnut supplementation in men.
J Hum Nutr Diet. 2014 Apr; 27 Suppl 2:247-54.JH

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.

Authors+Show Affiliations

Department of Nutrition Science, Purdue University, West Lafayette, IN, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24033567

Citation

Kranz, S, et al. "Nutrient Displacement Associated With Walnut Supplementation in Men." Journal of Human Nutrition and Dietetics : the Official Journal of the British Dietetic Association, vol. 27 Suppl 2, 2014, pp. 247-54.
Kranz S, Hill AM, Fleming JA, et al. Nutrient displacement associated with walnut supplementation in men. J Hum Nutr Diet. 2014;27 Suppl 2:247-54.
Kranz, S., Hill, A. M., Fleming, J. A., Hartman, T. J., West, S. G., & Kris-Etherton, P. M. (2014). Nutrient displacement associated with walnut supplementation in men. Journal of Human Nutrition and Dietetics : the Official Journal of the British Dietetic Association, 27 Suppl 2, 247-54. https://doi.org/10.1111/jhn.12146
Kranz S, et al. Nutrient Displacement Associated With Walnut Supplementation in Men. J Hum Nutr Diet. 2014;27 Suppl 2:247-54. PubMed PMID: 24033567.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Nutrient displacement associated with walnut supplementation in men. AU - Kranz,S, AU - Hill,A M, AU - Fleming,J A, AU - Hartman,T J, AU - West,S G, AU - Kris-Etherton,P M, Y1 - 2013/08/24/ PY - 2013/9/17/entrez PY - 2013/9/17/pubmed PY - 2014/12/15/medline KW - energy compensation KW - food displacement KW - walnut supplementation SP - 247 EP - 54 JF - Journal of human nutrition and dietetics : the official journal of the British Dietetic Association JO - J Hum Nutr Diet VL - 27 Suppl 2 N2 - 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. SN - 1365-277X UR - https://www.unboundmedicine.com/medline/citation/24033567/Nutrient_displacement_associated_with_walnut_supplementation_in_men_ L2 - https://doi.org/10.1111/jhn.12146 DB - PRIME DP - Unbound Medicine ER -