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Intakes of most nutrients remain at acceptable levels during a weight management program using the food exchange system.
J Am Diet Assoc 2001; 101(5):554-61JA

Abstract

OBJECTIVE

The purpose of this study was to determine if the food exchange system allows subjects' nutrient intake to remain at recommended levels during a weight-loss program.

DESIGN

Subjects in an intervention were prescribed an energy-restriction diet and exercise program lasting 32 weeks, and nutrient intake was measured prestudy and after 12, 16, and 32 weeks.

SUBJECTS/SETTING

Healthy but overweight and obese premenopausal women (n = 219) were recruited at 6 university sites into community-based weight loss programs. One hundred fifteen women completed all aspects of the study.

INTERVENTION

Energy intake was set at 0.8 x resting metabolic rate (RMR) for weeks 1 through 12, 1.0 x RMR for weeks 13 through 20, and 1.2 x RMR for weeks 21 through 32. Energy intake was based on food exchange tables, with the number of food exchanges adjusted to encourage a distribution of 55% carbohydrate, 30% fat, and 15% protein. Subjects increased their daily walking distance to 3.2 km above prestudy levels.

MAIN OUTCOME MEASURES

Nutrient intake was measured from four 3-day food records.

STATISTICAL ANALYSES PERFORMED

Repeated measures analysis of variance, with specific time point changes assessed from paired t tests adjusted for multiple comparisons.

RESULTS

Body mass decreased by a mean +/- SD of 6.7 +/- 3.2 kg at week 12 and 7.8 +/- 6.2 kg by week 32. Walking distance increased by an average of 17.2 +/- 10.0 km/week during the first 12 weeks, and 12.4 +/- 12.4 km/week during the last 20 weeks. Despite a 23% to 36% reduction in energy intake during the study, intake of most nutrients was maintained. Intake of vitamin E, calcium, iron, and zinc decreased significantly from prestudy levels during the first 16 weeks of the intervention, but not at week 32.

APPLICATIONS/CONCLUSIONS

Intake of most nutrients can remain at recommended levels when overweight and obese women follow the American Diabetes Association/American Dietetic Association food exchange system during a community-based weight-loss program.

Authors+Show Affiliations

Department of Health and Exercise Science, Appalachian State University, Boone, NC 28608, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

11374349

Citation

Benezra, L M., et al. "Intakes of Most Nutrients Remain at Acceptable Levels During a Weight Management Program Using the Food Exchange System." Journal of the American Dietetic Association, vol. 101, no. 5, 2001, pp. 554-61.
Benezra LM, Nieman DC, Nieman CM, et al. Intakes of most nutrients remain at acceptable levels during a weight management program using the food exchange system. J Am Diet Assoc. 2001;101(5):554-61.
Benezra, L. M., Nieman, D. C., Nieman, C. M., Melby, C., Cureton, K., Schmidt, D., ... Osterberg, K. (2001). Intakes of most nutrients remain at acceptable levels during a weight management program using the food exchange system. Journal of the American Dietetic Association, 101(5), pp. 554-61.
Benezra LM, et al. Intakes of Most Nutrients Remain at Acceptable Levels During a Weight Management Program Using the Food Exchange System. J Am Diet Assoc. 2001;101(5):554-61. PubMed PMID: 11374349.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Intakes of most nutrients remain at acceptable levels during a weight management program using the food exchange system. AU - Benezra,L M, AU - Nieman,D C, AU - Nieman,C M, AU - Melby,C, AU - Cureton,K, AU - Schmidt,D, AU - Howley,E T, AU - Costello,C, AU - Hill,J O, AU - Mault,J R, AU - Alexander,H, AU - Stewart,D J, AU - Osterberg,K, PY - 2001/5/26/pubmed PY - 2001/6/23/medline PY - 2001/5/26/entrez SP - 554 EP - 61 JF - Journal of the American Dietetic Association JO - J Am Diet Assoc VL - 101 IS - 5 N2 - OBJECTIVE: The purpose of this study was to determine if the food exchange system allows subjects' nutrient intake to remain at recommended levels during a weight-loss program. DESIGN: Subjects in an intervention were prescribed an energy-restriction diet and exercise program lasting 32 weeks, and nutrient intake was measured prestudy and after 12, 16, and 32 weeks. SUBJECTS/SETTING: Healthy but overweight and obese premenopausal women (n = 219) were recruited at 6 university sites into community-based weight loss programs. One hundred fifteen women completed all aspects of the study. INTERVENTION: Energy intake was set at 0.8 x resting metabolic rate (RMR) for weeks 1 through 12, 1.0 x RMR for weeks 13 through 20, and 1.2 x RMR for weeks 21 through 32. Energy intake was based on food exchange tables, with the number of food exchanges adjusted to encourage a distribution of 55% carbohydrate, 30% fat, and 15% protein. Subjects increased their daily walking distance to 3.2 km above prestudy levels. MAIN OUTCOME MEASURES: Nutrient intake was measured from four 3-day food records. STATISTICAL ANALYSES PERFORMED: Repeated measures analysis of variance, with specific time point changes assessed from paired t tests adjusted for multiple comparisons. RESULTS: Body mass decreased by a mean +/- SD of 6.7 +/- 3.2 kg at week 12 and 7.8 +/- 6.2 kg by week 32. Walking distance increased by an average of 17.2 +/- 10.0 km/week during the first 12 weeks, and 12.4 +/- 12.4 km/week during the last 20 weeks. Despite a 23% to 36% reduction in energy intake during the study, intake of most nutrients was maintained. Intake of vitamin E, calcium, iron, and zinc decreased significantly from prestudy levels during the first 16 weeks of the intervention, but not at week 32. APPLICATIONS/CONCLUSIONS: Intake of most nutrients can remain at recommended levels when overweight and obese women follow the American Diabetes Association/American Dietetic Association food exchange system during a community-based weight-loss program. SN - 0002-8223 UR - https://www.unboundmedicine.com/medline/citation/11374349/Intakes_of_most_nutrients_remain_at_acceptable_levels_during_a_weight_management_program_using_the_food_exchange_system_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0002-8223(01)00138-9 DB - PRIME DP - Unbound Medicine ER -