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Diet composition related to body fat in a multivariate study of 203 men.
J Am Diet Assoc. 1996 Aug; 96(8):771-7.JA

Abstract

OBJECTIVE

To assess whether usual diet (especially intake of dietary fat, carbohydrate, and fiber) was related to body fat percentage in healthy men.

DESIGN

A written questionnaire provided data on demographic and lifestyle characteristics. Dietary fat, carbohydrate, protein, and fiber intakes were analyzed using the National Cancer Institute food frequency questionnaire. Percentage of body fat was determined using three-site skinfold measurements, and a submaximal treadmill test was used to estimate aerobic fitness.

SUBJECTS

Subjects were 203 healthy men (14.0 +/- 5.3% mean body fat) aged 21 to 71 years. The subjects were chosen from randomly selected districts within Utah County and volunteered for free diet and fitness evaluations.

STATISTICAL ANALYSIS

Multiple regression analysis determined the extent to which the individual diet components predicted body composition before and after controlling for energy intake, fitness level, body weight, and age. Multivariate analysis of variance was used to compare relative body fat groups in regard to dietary variables.

RESULTS

Reported intakes of carbohydrate (P = .0085, R2 = .022), complex carbohydrate (P = .0127, R2 = .024), and fiber (P = .002, R2 = .03) were inversely associated with body fat after controlling for age, energy intake, and fitness level. Energy intake was positively related to body fat after controlling for age, fitness level, and body weight. When subjects were separated into low-, moderate-, and high-body-fat groups, the fattest subjects reported eating significantly more dietary fat (P = .05) and less carbohydrate (P = .01), complex carbohydrate (P = .01), and fiber (P = .005) than the leanest subjects. No significant difference in reported energy intake was noted across body fat groups.

APPLICATIONS

Composition of the diet may play a role in obesity beyond energy intake in men over the long-term. Lifestyle changes for men should probably include modifications in diet composition, especially increased consumption of foods high in complex carbohydrate and fiber.

Authors+Show Affiliations

Department of Physical Education, Brigham Young University, Provo, Utah 84602, USA.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

8683008

Citation

Nelson, L H., and L A. Tucker. "Diet Composition Related to Body Fat in a Multivariate Study of 203 Men." Journal of the American Dietetic Association, vol. 96, no. 8, 1996, pp. 771-7.
Nelson LH, Tucker LA. Diet composition related to body fat in a multivariate study of 203 men. J Am Diet Assoc. 1996;96(8):771-7.
Nelson, L. H., & Tucker, L. A. (1996). Diet composition related to body fat in a multivariate study of 203 men. Journal of the American Dietetic Association, 96(8), 771-7.
Nelson LH, Tucker LA. Diet Composition Related to Body Fat in a Multivariate Study of 203 Men. J Am Diet Assoc. 1996;96(8):771-7. PubMed PMID: 8683008.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Diet composition related to body fat in a multivariate study of 203 men. AU - Nelson,L H, AU - Tucker,L A, PY - 1996/8/1/pubmed PY - 1996/8/1/medline PY - 1996/8/1/entrez SP - 771 EP - 7 JF - Journal of the American Dietetic Association JO - J Am Diet Assoc VL - 96 IS - 8 N2 - OBJECTIVE: To assess whether usual diet (especially intake of dietary fat, carbohydrate, and fiber) was related to body fat percentage in healthy men. DESIGN: A written questionnaire provided data on demographic and lifestyle characteristics. Dietary fat, carbohydrate, protein, and fiber intakes were analyzed using the National Cancer Institute food frequency questionnaire. Percentage of body fat was determined using three-site skinfold measurements, and a submaximal treadmill test was used to estimate aerobic fitness. SUBJECTS: Subjects were 203 healthy men (14.0 +/- 5.3% mean body fat) aged 21 to 71 years. The subjects were chosen from randomly selected districts within Utah County and volunteered for free diet and fitness evaluations. STATISTICAL ANALYSIS: Multiple regression analysis determined the extent to which the individual diet components predicted body composition before and after controlling for energy intake, fitness level, body weight, and age. Multivariate analysis of variance was used to compare relative body fat groups in regard to dietary variables. RESULTS: Reported intakes of carbohydrate (P = .0085, R2 = .022), complex carbohydrate (P = .0127, R2 = .024), and fiber (P = .002, R2 = .03) were inversely associated with body fat after controlling for age, energy intake, and fitness level. Energy intake was positively related to body fat after controlling for age, fitness level, and body weight. When subjects were separated into low-, moderate-, and high-body-fat groups, the fattest subjects reported eating significantly more dietary fat (P = .05) and less carbohydrate (P = .01), complex carbohydrate (P = .01), and fiber (P = .005) than the leanest subjects. No significant difference in reported energy intake was noted across body fat groups. APPLICATIONS: Composition of the diet may play a role in obesity beyond energy intake in men over the long-term. Lifestyle changes for men should probably include modifications in diet composition, especially increased consumption of foods high in complex carbohydrate and fiber. SN - 0002-8223 UR - https://www.unboundmedicine.com/medline/citation/8683008/Diet_composition_related_to_body_fat_in_a_multivariate_study_of_203_men_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0002-8223(96)00215-5 DB - PRIME DP - Unbound Medicine ER -