Visual food cues decrease postprandial glucose concentrations in lean and obese men without affecting food intake and related endocrine parameters
| Autor: | Swantje Brede, Manfred Hallschmid, Hendrik Lehnert, Annika Sputh, Johanna Klement, Ann-Christin Hartmann |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Adult Blood Glucose Male medicine.medical_specialty Calorie Diet Reducing medicine.medical_treatment Models Psychological Glucagon Body Mass Index 03 medical and health sciences Food Preferences Young Adult Internal medicine Germany medicine Photography Glucose homeostasis Humans Obesity General Psychology Anticipation Cephalic Phase Response Food Intake Food Pictures Glucose Homeostasis Visual Cues 030109 nutrition & dietetics Nutrition and Dietetics Snacking Appetite Regulation Insulin digestive oral and skin physiology medicine.disease Anticipation Psychological Postprandial Period Postprandial Endocrinology Lunch Hyperglycemia Impulsive Behavior Patient Compliance Ghrelin Cues Snacks Psychology Energy Intake |
| Zdroj: | Appetite 117, 255-262 (2017) |
| ISSN: | 1095-8304 |
| Popis: | The abundance of highly palatable food items in our environment represents a possible cause of overconsumption. Neuroimaging studies in humans have demonstrated that watching pictures of food increases activation in brain areas involved in homeostatic and hedonic food cue processing. Nevertheless, the impact of food cues on actual food intake and metabolic parameters has not been systematically investigated. We tested the hypothesis that watching high-calorie food cues increases food intake and modifies anticipatory blood parameters in lean and especially in obese men. In 20 normal-weight and 20 obese healthy fasted men, we assessed the effects of watching pictures of high-calorie food items versus neutral contents on food intake measured during a standardized test buffet and subsequent snacking as well as on glucose homeostasis and endocrine parameters. Compared to neutral pictures, viewing food pictures reduced postprandial blood glucose concentrations in lean (p=0.016) and obese (p=0.044) subjects, without any differences in insulin or C-peptide concentrations (all p>0.4). Viewing food pictures did not affect total calorie intake during the buffet (all p>0.5) and snack consumption (all p>0.4). Concentrations of ghrelin, adrenocorticotropic hormone (ACTH), cortisol, and glucagon also remained unaffected (all p>0.08). These data indicate that preprandial processing of food cues curbs postprandial blood glucose excursions, without immediately affecting eating behavior in normal-weight and obese men. Findings indicate that exposure to food cues does not acutely trigger calorie overconsumption but rather improves the glucoregulatory response to food intake. |
| Databáze: | OpenAIRE |
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