Mind Over Milkshakes: Mindsets, Not Just Nutrients, Determine Ghrelin Response

To test whether physiological satiation as measured by the gut peptide ghrelin may vary depending on the mindset in which one approaches consumption of food. On 2 separate occasions, participants (n = 46) consumed a 380-calorie milkshake under the pretense that it was either a 620-calorie "indu...

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Bibliographic Details
Published in:Health psychology 2011-07, Vol.30 (4), p.424-429
Main Authors: CRUM, Alia J, CORBIN, William R, BROWNELL, Kelly D, SALOVEY, Peter
Format: Article
Language:English
Subjects:
Adolescent
Adult
Attitudes
Biological and medical sciences
Eating - physiology
Eating - psychology
Eating Attitudes
Female
Flats
Food
Food consumption
Food Intake
Fundamental and applied biological sciences. Psychology
Ghrelin
Ghrelin - blood
Ghrelin - physiology
Hormones
Human
Humans
Hunger
Illness and personality
Labeling
Male
Nutrients
Nutrition
Personality, behavior and health
Physiology
Product Design
Psychology and medicine
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Satiation
Satiation - physiology
Young Adult
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Summary:To test whether physiological satiation as measured by the gut peptide ghrelin may vary depending on the mindset in which one approaches consumption of food. On 2 separate occasions, participants (n = 46) consumed a 380-calorie milkshake under the pretense that it was either a 620-calorie "indulgent" shake or a 140-calorie "sensible" shake. Ghrelin was measured via intravenous blood samples at 3 time points: baseline (20 min), anticipatory (60 min), and postconsumption (90 min). During the first interval (between 20 and 60 min) participants were asked to view and rate the (misleading) label of the shake. During the second interval (between 60 and 90 min) participants were asked to drink and rate the milkshake. The mindset of indulgence produced a dramatically steeper decline in ghrelin after consuming the shake, whereas the mindset of sensibility produced a relatively flat ghrelin response. Participants' satiety was consistent with what they believed they were consuming rather than the actual nutritional value of what they consumed. The effect of food consumption on ghrelin may be psychologically mediated, and mindset meaningfully affects physiological responses to food.
ISSN:0278-6133
1930-7810
DOI:10.1037/a0023467