Cognitive performance and its relationship with postprandial metabolic changes after ingestion of different macronutrients in the morning

The effect of carbohydrate, protein and fat ingestion on simple as well as complex cognitive functions and the relationship between the respective postprandial metabolic changes and changes in cognitive performance were studied in fifteen healthy male students. Subjects were tested in three sessions...

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Veröffentlicht in:British journal of nutrition 2001-03, Vol.85 (3), p.393-405
Hauptverfasser: Fischer, Karina, Colombani, Paolo C., Langhans, Wolfgang, Wenk, Caspar
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container_title British journal of nutrition
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creator Fischer, Karina
Colombani, Paolo C.
Langhans, Wolfgang
Wenk, Caspar
description The effect of carbohydrate, protein and fat ingestion on simple as well as complex cognitive functions and the relationship between the respective postprandial metabolic changes and changes in cognitive performance were studied in fifteen healthy male students. Subjects were tested in three sessions, separated by 1 week, for short-term changes in blood variables, indirect calorimetry, subjective performance and different objective performance tasks using a repeated-measures counterbalanced cross-over design. Measurements were made after an overnight fast before and hourly during 3 h after test meal ingestion. Test meals consisted of either pure carbohydrates, protein or fat and were served as isoenergetic (1670 kJ) spoonable creams with similar sensory properties. Most aspects of subjective performance did not differ between test meals. For all objective tasks, however, postprandial cognitive performance was best after fat ingestion concomitant with an almost constant glucose metabolism and constant metabolic activation state measured by glucagon:insulin (G:I). In contrast, carbohydrate as well as protein ingestion resulted in lower overall cognitive performance, both together with partly marked changes (P
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Our findings support the concept that good and stable cognitive performance is related to a balanced glucose metabolism and metabolic activation state.</description><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Blood Glucose - metabolism</subject><subject>Calorimetry</subject><subject>Calorimetry, Indirect</subject><subject>Carbohydrates</subject><subject>Cognition &amp; reasoning</subject><subject>Cognition - drug effects</subject><subject>Cognitive ability</subject><subject>Cognitive performance</subject><subject>Cross-Over Studies</subject><subject>Diet - psychology</subject><subject>Dietary Carbohydrates - pharmacology</subject><subject>Dietary Fats - pharmacology</subject><subject>Dietary Proteins - pharmacology</subject><subject>Energy Metabolism - physiology</subject><subject>Feeding. Feeding behavior</subject><subject>Fundamental and applied biological sciences. 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subjects Adult
Biological and medical sciences
Blood Glucose - metabolism
Calorimetry
Calorimetry, Indirect
Carbohydrates
Cognition & reasoning
Cognition - drug effects
Cognitive ability
Cognitive performance
Cross-Over Studies
Diet - psychology
Dietary Carbohydrates - pharmacology
Dietary Fats - pharmacology
Dietary Proteins - pharmacology
Energy Metabolism - physiology
Feeding. Feeding behavior
Fundamental and applied biological sciences. Psychology
Glucagon
Glucagon - blood
Glucose
Hormones - blood
Humans
Ingestion
Insulin - blood
Macronutrient ingestion
Male
Meals
Memory - drug effects
Metabolism
Metabolites
Nutrition
Postprandial metabolism
Postprandial Period - physiology
Proteins
Reaction Time - drug effects
Respiratory Mechanics - physiology
Surveys and Questionnaires
Vertebrates: anatomy and physiology, studies on body, several organs or systems
title Cognitive performance and its relationship with postprandial metabolic changes after ingestion of different macronutrients in the morning
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