Cited by 87Regulation of Appetite and ObesityNutrition, Health and Food BehaviorNeurotransmitter Receptor Influence on Behavior

Human protein status modulates brain reward responses to food cues

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Griffioen-Roose, Sanne, Smeets, Paul AM, van den Heuvel, Emmy, Boesveldt, Sanne, Finlayson, Graham, de Graaf, Cees·2014·The American Journal of Clinical Nutrition

Abstract

Background Protein is indispensable in the human diet, and its intake appears tightly regulated. The role of sensory attributes of foods in protein intake regulation is far from clear.Objective We investigated the effect of human protein status on neural responses to different food cues with the use of functional magnetic resonance imaging (fMRI). The food cues varied by taste category (sweet compared with savory) and protein content (low compared with high). In addition, food preferences and intakes were measured.Design We used a randomized crossover design whereby 23 healthy women [mean ± SD age: 22 ± 2 y; mean ± SD body mass index (in kg/m(2)): 22.5 ± 1.8] followed two 16-d fully controlled dietary interventions involving consumption of either a low-protein diet (0.6 g protein · kg body weight(-1) · d(-1), ~7% of energy derived from protein, approximately half the normal protein intake) or a high-protein diet (2.2 g protein · kg body weight(-1) · d(-1), ~25% of energy, approximately twice the normal intake). On the last day of the interventions, blood oxygen level-dependent (BOLD) responses to odor and visual food cues were measured by using fMRI. The 2 interventions were followed by a 1-d ad libitum phase, during which a large array of food items was available and preference and intake were measured.Results When exposed to food cues (relative to the control condition), the BOLD response was higher in reward-related areas (orbitofrontal cortex, striatum) in a low-protein state than in a high-protein state. Specifically, BOLD was higher in the inferior orbitofrontal cortex in response to savory food cues. In contrast, the protein content of the food cues did not modulate the BOLD response. A low protein state also increased preferences for savory food cues and increased protein intake in the ad libitum phase as compared with a high-protein state.Conclusions Protein status modulates brain responses in reward regions to savory food cues. These novel findings suggest that dietary protein status affects taste category preferences, which could play an important role in the regulation of protein intake in humans. This trial was registered at www.trialregister.nl/trialreg/admin/rctview.asp?TC=3288 as NTR3288.

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Crossref · 10.3945/ajcn.113.079392

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Authors
Griffioen-Roose, S., Smeets, P. A., van den Heuvel, E., Boesveldt, S., Finlayson, G., & de Graaf, C.
Affiliations
University of Leeds (GB)
Venue
The American Journal of Clinical Nutrition
Publisher
Elsevier BV
Published
2014-07
Volume
100
Issue
1
Pages
113-122
ISSN
0002-9165 (ISSN-L)
OpenAlex
W2169898453
Cited by
87
References
41
Citations by year
2026: 7 · 2025: 7 · 2024: 7 · 2023: 4 · 2022: 5 · 2021: 9 · 2020: 7 · 2019: 8 · 2018: 7 · 2017: 9 · 2016: 8 · 2015: 7 · 2014: 2
FWCI
4.22
Type
journal article
Language
en
Open access
Locations
  • American Journal of Clinical Nutrition (publishedVersion)
  • PubMed (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
Technology Foundation STW (07438)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Nursing › Nutrition and Dietetics › Nutrition, Health and Food Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
food reward, food cues, low-protein diet, high-protein diet, orbitofrontal cortex, striatum, sweet taste, food preferences
MeSH terms
Body Weight, Brain, Energy Intake, Choice Behavior, Cues, Dietary Carbohydrates, Dietary Fats, Dietary Proteins, Feeding Behavior, Female, Food Preferences, Humans, Magnetic Resonance Imaging, Neurons, Nutritional Status, Reward, Taste, Body Mass Index, Cross-Over Studies, Diet, Protein-Restricted, Young Adult, Healthy Volunteers

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