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Energy requirements in nonobese men and women: results from CALERIE.

Publication ,  Journal Article
Redman, LM; Kraus, WE; Bhapkar, M; Das, SK; Racette, SB; Martin, CK; Fontana, L; Wong, WW; Roberts, SB; Ravussin, E; CALERIE Study Group,
Published in: Am J Clin Nutr
January 2014

BACKGROUND: The energy intake necessary to maintain weight and body composition is called the energy requirement for weight maintenance and can be determined by using the doubly labeled water (DLW) method. OBJECTIVE: The objective was to determine the energy requirements of nonobese men and women in the Comprehensive Assessment of Long-Term Effects of Reducing Intake of Energy 2 study. DESIGN: Energy requirements were determined for 217 healthy, weight-stable men and women [aged >21 to <50 y; 70% female, 77% white; body mass index (BMI; in kg/m(2)) 22 to <28; 52% overweight] over 28 d with 2 consecutive 14-d DLW assessments in addition to serial measures of body weight and fat-free mass and fat mass by dual-energy X-ray absorptiometry. Energy intake and physical activity were also estimated by self-report over ≥6 consecutive d in each DLW period. RESULTS: Total daily energy expenditure (TDEE) was consistent between the 2 DLW studies (TDEE1: 2422 ± 404 kcal/d; TDEE2: 2465 ± 408 kcal/d; intraclass correlation coefficient = 0.90) with a mean TDEE of 2443 ± 397 kcal/d that was, on average, 20% (580 kcal/d) higher in men than in women (P < 0.0001). The regression equation relating mean TDEE to demographics and weight was as follows: TDEE (kcal/d) = 1279 + 18.3 (weight, kg) + 2.3 (age, y) - 338 (sex: 1 = female, 0 = male); R(2) = 0.57. When body composition was included, TDEE (kcal/d) = 454 + 38.7 (fat-free mass, kg) - 5.4 (fat mass, kg) + 4.7 (age in y) + 103 (sex: 1 = female, 0 = male); R(2) = 0.65. Individuals significantly underreported energy intake (350 kcal/d; 15%), and underreporting by overweight individuals (~400 kcal/d; 16%) was greater (P < 0.001) than that of normal-weight individuals (~270 kcal/d; 12%). Estimates of TDEE from a 7-d physical activity recall and measured resting metabolic rate also suggested that individuals significantly underreported physical activity (~400 kcal/d; 17%; P < 0.0001). CONCLUSION: These new equations derived over 1 mo during weight stability can be used to estimate the free-living caloric requirements of nonobese adults. This trial was registered at clinicaltrials.gov as NCT00427193.

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Published In

Am J Clin Nutr

DOI

EISSN

1938-3207

Publication Date

January 2014

Volume

99

Issue

1

Start / End Page

71 / 78

Location

United States

Related Subject Headings

  • Young Adult
  • Overweight
  • Nutritional Requirements
  • Nutrition & Dietetics
  • Motor Activity
  • Middle Aged
  • Male
  • Longitudinal Studies
  • Linear Models
  • Humans
 

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Redman, L. M., Kraus, W. E., Bhapkar, M., Das, S. K., Racette, S. B., Martin, C. K., … CALERIE Study Group, . (2014). Energy requirements in nonobese men and women: results from CALERIE. Am J Clin Nutr, 99(1), 71–78. https://doi.org/10.3945/ajcn.113.065631
Redman, Leanne M., William E. Kraus, Manju Bhapkar, Sai Krupa Das, Susan B. Racette, Corby K. Martin, Luigi Fontana, et al. “Energy requirements in nonobese men and women: results from CALERIE.Am J Clin Nutr 99, no. 1 (January 2014): 71–78. https://doi.org/10.3945/ajcn.113.065631.
Redman LM, Kraus WE, Bhapkar M, Das SK, Racette SB, Martin CK, et al. Energy requirements in nonobese men and women: results from CALERIE. Am J Clin Nutr. 2014 Jan;99(1):71–8.
Redman, Leanne M., et al. “Energy requirements in nonobese men and women: results from CALERIE.Am J Clin Nutr, vol. 99, no. 1, Jan. 2014, pp. 71–78. Pubmed, doi:10.3945/ajcn.113.065631.
Redman LM, Kraus WE, Bhapkar M, Das SK, Racette SB, Martin CK, Fontana L, Wong WW, Roberts SB, Ravussin E, CALERIE Study Group. Energy requirements in nonobese men and women: results from CALERIE. Am J Clin Nutr. 2014 Jan;99(1):71–78.
Journal cover image

Published In

Am J Clin Nutr

DOI

EISSN

1938-3207

Publication Date

January 2014

Volume

99

Issue

1

Start / End Page

71 / 78

Location

United States

Related Subject Headings

  • Young Adult
  • Overweight
  • Nutritional Requirements
  • Nutrition & Dietetics
  • Motor Activity
  • Middle Aged
  • Male
  • Longitudinal Studies
  • Linear Models
  • Humans