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Effects of calcium and dairy on body composition and weight loss in African-American adults.
Obes Res. 2005 Jul; 13(7):1218-25.OR

Abstract

OBJECTIVE

Our objective was to determine the effects of dairy consumption on adiposity and body composition in obese African Americans.

RESEARCH METHODS AND PROCEDURES

We performed two randomized trials in obese African-American adults. In the first (weight maintenance), 34 subjects were maintained on a low calcium (500 mg/d)/low dairy (<1 serving/d) or high dairy (1200 mg Ca/d diet including 3 servings of dairy) diet with no change in energy or macronutrient intake for 24 weeks. In the second trial (weight loss), 29 subjects were similarly randomized to the low or high dairy diets and placed on a caloric restriction regimen (-500 kcal/d).

RESULTS

In the first trial, body weight remained stable for both groups throughout the maintenance study. The high dairy diet resulted in decreases in total body fat (2.16 kg, p < 0.01), trunk fat (1.03 kg, p < 0.01), insulin (18.7 pM, p < 0.04), and blood pressure (6.8 mm Hg systolic, p < 0.01; 4.25 mm Hg diastolic, p < 0.01) and an increase in lean mass (1.08 kg, p < 0.04), whereas there were no significant changes in the low dairy group. In the second trial, although both diets produced significant weight and fat loss, weight and fat loss on the high dairy diet were approximately 2-fold higher (p < 0.01), and loss of lean body mass was markedly reduced (p < 0.001) compared with the low dairy diet.

DISCUSSION

Substitution of calcium-rich foods in isocaloric diets reduced adiposity and improved metabolic profiles in obese African Americans without energy restriction or weight loss and augmented weight and fat loss secondary to energy restriction.

Authors+Show Affiliations

Department of Nutrition, The University of Tennessee, 1215 W. Cumberland Avenue, Room 229, Knoxville, TN 37996-1920, USA. mzemel@utk.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

16076991

Citation

Zemel, Michael B., et al. "Effects of Calcium and Dairy On Body Composition and Weight Loss in African-American Adults." Obesity Research, vol. 13, no. 7, 2005, pp. 1218-25.
Zemel MB, Richards J, Milstead A, et al. Effects of calcium and dairy on body composition and weight loss in African-American adults. Obes Res. 2005;13(7):1218-25.
Zemel, M. B., Richards, J., Milstead, A., & Campbell, P. (2005). Effects of calcium and dairy on body composition and weight loss in African-American adults. Obesity Research, 13(7), 1218-25.
Zemel MB, et al. Effects of Calcium and Dairy On Body Composition and Weight Loss in African-American Adults. Obes Res. 2005;13(7):1218-25. PubMed PMID: 16076991.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of calcium and dairy on body composition and weight loss in African-American adults. AU - Zemel,Michael B, AU - Richards,Joanna, AU - Milstead,Anita, AU - Campbell,Peter, PY - 2005/8/4/pubmed PY - 2006/1/7/medline PY - 2005/8/4/entrez SP - 1218 EP - 25 JF - Obesity research JO - Obes Res VL - 13 IS - 7 N2 - OBJECTIVE: Our objective was to determine the effects of dairy consumption on adiposity and body composition in obese African Americans. RESEARCH METHODS AND PROCEDURES: We performed two randomized trials in obese African-American adults. In the first (weight maintenance), 34 subjects were maintained on a low calcium (500 mg/d)/low dairy (<1 serving/d) or high dairy (1200 mg Ca/d diet including 3 servings of dairy) diet with no change in energy or macronutrient intake for 24 weeks. In the second trial (weight loss), 29 subjects were similarly randomized to the low or high dairy diets and placed on a caloric restriction regimen (-500 kcal/d). RESULTS: In the first trial, body weight remained stable for both groups throughout the maintenance study. The high dairy diet resulted in decreases in total body fat (2.16 kg, p < 0.01), trunk fat (1.03 kg, p < 0.01), insulin (18.7 pM, p < 0.04), and blood pressure (6.8 mm Hg systolic, p < 0.01; 4.25 mm Hg diastolic, p < 0.01) and an increase in lean mass (1.08 kg, p < 0.04), whereas there were no significant changes in the low dairy group. In the second trial, although both diets produced significant weight and fat loss, weight and fat loss on the high dairy diet were approximately 2-fold higher (p < 0.01), and loss of lean body mass was markedly reduced (p < 0.001) compared with the low dairy diet. DISCUSSION: Substitution of calcium-rich foods in isocaloric diets reduced adiposity and improved metabolic profiles in obese African Americans without energy restriction or weight loss and augmented weight and fat loss secondary to energy restriction. SN - 1071-7323 UR - https://www.unboundmedicine.com/medline/citation/16076991/Effects_of_calcium_and_dairy_on_body_composition_and_weight_loss_in_African_American_adults_ L2 - https://doi.org/10.1038/oby.2005.144 DB - PRIME DP - Unbound Medicine ER -