Cited by 52Muscle metabolism and nutritionDiet and metabolism studiesRegulation of Appetite and Obesity

Varying Protein Source and Quantity do not Significantly Improve Weight Loss, Fat Loss, or Satiety in Reduced Energy Diets among Midlife Adults

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Aldrich, Noel D., Reicks, Marla M., Sibley, Shalamar D., Redmon, J. Bruce, Thomas, William, Raatz, Susan K.·2011·Nutrition Research

Abstract

We hypothesized that a whey protein diet would result in greater weight loss and improved body composition compared with standard weight loss diets. Weight change, body composition, and renin-angiotensin aldosterone system activity in midlife adults were compared between diet groups. Eighteen subjects enrolled in a 5-month study of 8-week controlled food intake followed by 12-weeks ad libitum intake. Subjects were randomized to 1 of 3 treatment groups: control diet (CD) (55% carbohydrate/15% protein/30% fat), mixed protein (40% carbohydrate/30% protein/30% fat), or whey protein (WP) (40% carbohydrate/15% mixed protein/15% whey protein/30% fat). Measurements included weight, metabolic measures, body composition by dual-energy x-ray absorptiometry, and resting energy expenditure. No statistically significant differences in total weight loss or total fat loss were observed between treatments; however, a trend toward greater total weight loss (P = .08) and total fat loss (P = .09) was observed in the WP group compared with the CD group. Fat loss in the leg and gynoid regions was greater (P < .05) in the WP group than the CD group. No renin-angiotensin aldosterone system-mediated response was observed, but a decrease in systolic blood pressure was significantly greater (P < .05) in the WP group compared with the CD group. In summary, increased whey protein intake did not result in statistically significant differences in weight loss or in total fat loss, but significant differences in regional fat loss and in decreased blood pressure were observed in the WP group.

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Crossref · 10.1016/j.nutres.2011.01.004

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Authors
Aldrich, N. D., Reicks, M. M., Sibley, S. D., Redmon, J. B., Thomas, W., & Raatz, S. K.
Affiliations
University of Minnesota (US)
Corresponding author
Raatz, Susan K.
Venue
Nutrition Research
Publisher
Elsevier BV
Published
2011-02
Volume
31
Issue
2
Pages
104-112
ISSN
0271-5317 (ISSN-L)
OpenAlex
W2122411505
Cited by
52
References
48
Citations by year
2025: 3 · 2024: 2 · 2022: 2 · 2021: 2 · 2020: 4 · 2019: 5 · 2017: 3 · 2016: 7 · 2015: 3 · 2014: 6 · 2013: 9 · 2012: 4
FWCI
3.07
Type
journal article
Language
en
Open access
Locations
  • Nutrition Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Department of Agriculture
  • National Institute of Food and Agriculture
  • National Center for Research Resources (M01RR000400, M01-RR00400)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Physiology › Diet and metabolism studies
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
whey protein, weight loss, fat loss, satiety, hypocaloric diet, middle-aged adults, body composition, renin-angiotensin-aldosterone system, systolic blood pressure, resting energy expenditure, protein intake
MeSH terms
Whey Proteins, Adult, Aldosterone, Androgens, Blood Pressure, Body Composition, Body Weight, Energy Intake, Diet, Reducing, Dietary Proteins, Energy Metabolism, Female, Follow-Up Studies, Humans, Male, Middle Aged, Milk Proteins, Renin, Renin-Angiotensin System, Satiation, Weight Loss, Absorptiometry, Photon, Linear Models

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