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Effect of low- and high-calcium dairy-based diets on macronutrient oxidation in humans.
Obes Res. 2005 Dec; 13(12):2102-12.OR

Abstract

OBJECTIVE

Higher calcium and dairy intakes may be associated with lower body weights, but a mechanism in humans has yet to be elucidated. We compared the effects of a dairy-based high-calcium diet and a low-calcium diet on macronutrient oxidation.

RESEARCH METHODS AND PROCEDURES

Subjects (10 men and nine women) consumed a low-dairy (LD, approximately one serving per day, approximately 500 mg Ca(2+)/d) or high-dairy (HD, approximately three to four servings per day, approximately 1400 mg Ca(2+)/d) energy balance diet for 1 week. Each diet condition was performed twice. On the 7th day, subjects were studied in a room calorimeter under one of four study conditions, applied in a randomized crossover design. Within each diet condition, subjects were studied under conditions of energy balance and acute energy deficit. The deficit (-600 kcal/d) was induced only for the 24 hours that subjects resided in the room and was achieved by a combination of caloric restriction and exercise.

RESULTS

Under energy balance conditions, there was no effect of diet treatment on respiratory quotient or 24-hour macronutrient oxidation. Under energy deficit conditions, 24-hour fat oxidation was significantly increased on the HD diet (HD with deficit = 136 +/- 13 g/d, LD with deficit = 106 +/- 7 g/d, p = 0.02).

DISCUSSION

Consumption of a dairy-based high-calcium diet increased 24-hour fat oxidation under conditions of acute energy deficit. We hypothesize that these effects are due to an increased fat oxidation during exercise.

Authors+Show Affiliations

Center for Human Nutrition, University of Colorado Health Sciences Center, Denver, 80262, USA. Ed.melanson@uchsc.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

16421344

Citation

Melanson, Edward L., et al. "Effect of Low- and High-calcium Dairy-based Diets On Macronutrient Oxidation in Humans." Obesity Research, vol. 13, no. 12, 2005, pp. 2102-12.
Melanson EL, Donahoo WT, Dong F, et al. Effect of low- and high-calcium dairy-based diets on macronutrient oxidation in humans. Obes Res. 2005;13(12):2102-12.
Melanson, E. L., Donahoo, W. T., Dong, F., Ida, T., & Zemel, M. B. (2005). Effect of low- and high-calcium dairy-based diets on macronutrient oxidation in humans. Obesity Research, 13(12), 2102-12.
Melanson EL, et al. Effect of Low- and High-calcium Dairy-based Diets On Macronutrient Oxidation in Humans. Obes Res. 2005;13(12):2102-12. PubMed PMID: 16421344.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of low- and high-calcium dairy-based diets on macronutrient oxidation in humans. AU - Melanson,Edward L, AU - Donahoo,William T, AU - Dong,Fran, AU - Ida,Therese, AU - Zemel,Michael B, PY - 2006/1/20/pubmed PY - 2007/4/17/medline PY - 2006/1/20/entrez SP - 2102 EP - 12 JF - Obesity research JO - Obes Res VL - 13 IS - 12 N2 - OBJECTIVE: Higher calcium and dairy intakes may be associated with lower body weights, but a mechanism in humans has yet to be elucidated. We compared the effects of a dairy-based high-calcium diet and a low-calcium diet on macronutrient oxidation. RESEARCH METHODS AND PROCEDURES: Subjects (10 men and nine women) consumed a low-dairy (LD, approximately one serving per day, approximately 500 mg Ca(2+)/d) or high-dairy (HD, approximately three to four servings per day, approximately 1400 mg Ca(2+)/d) energy balance diet for 1 week. Each diet condition was performed twice. On the 7th day, subjects were studied in a room calorimeter under one of four study conditions, applied in a randomized crossover design. Within each diet condition, subjects were studied under conditions of energy balance and acute energy deficit. The deficit (-600 kcal/d) was induced only for the 24 hours that subjects resided in the room and was achieved by a combination of caloric restriction and exercise. RESULTS: Under energy balance conditions, there was no effect of diet treatment on respiratory quotient or 24-hour macronutrient oxidation. Under energy deficit conditions, 24-hour fat oxidation was significantly increased on the HD diet (HD with deficit = 136 +/- 13 g/d, LD with deficit = 106 +/- 7 g/d, p = 0.02). DISCUSSION: Consumption of a dairy-based high-calcium diet increased 24-hour fat oxidation under conditions of acute energy deficit. We hypothesize that these effects are due to an increased fat oxidation during exercise. SN - 1071-7323 UR - https://www.unboundmedicine.com/medline/citation/16421344/Effect_of_low__and_high_calcium_dairy_based_diets_on_macronutrient_oxidation_in_humans_ L2 - https://doi.org/10.1038/oby.2005.261 DB - PRIME DP - Unbound Medicine ER -