Page 6 - Nutrinsight-1

NutrInsight • About the value of controlling appetite
Psychobiological control of eating behaviour
Eating behaviour is determined by a complex psychobiological system, which calls for a high level of integration of information from multiple sources to work smoothly. These sources of information arise both inside the body and in the environment in which it finds itself. Eating behaviour includes the actual act of eating, the motivations that accompany the consumption of food, peripheral physiological and metabolic processes, pathways and receptors in the brain and their interactions with nutritional parameters. Figure 2 illustrates the interaction of the various factors that determine eating behaviour.
Socio-economic, cultural, religious, and psychological factors, eating habits, body image
Cognitive factors Beliefs
FOODS Structure Composition
Subjective perception
FOOD INTAKE Total calories Behaviour Selection
Mood
Hunger, appetite, satiety
INGESTION
Neurotransmitters
Neuromodulators
LIVER
ENERGY EXPENDITURE
Preferences - Aversions learned or conditioned
Post-ingestion control Energy flow
DIGESTION
ABSORPTION
LEAN MASS RESERVES
Figure 2: Psychobiological control of eating behaviour
[ Satiation and satiety control the pattern
of eating behav]iour control the pattern
ionf einatdiinvgidbuehaalsvi.o
In Man, eating is an adaptative action under psychobiological control (adapted from 10).
Satiation and satiety
ur in individuals
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