Social and Situational Influences on Feeding Behavior

There are a number of social and situational influences on food intake in humans. In general, the shorter the time period of measurement the greater the effect of situational and social influences. Thus, there are a large number of factors that can influence single meal size in humans. These factors are summarized in Figure 4.

Time of day appears to influence meal size in that the amount eaten and the EI increases on going from breakfast, to lunch to the evening meal. Meal size also increases across the feeding period in rats. It has been suggested that this occurs in learned anticipation of the energy requirements in the fasting period (night for humans, day for rats)6. Meal size and EI

No. of people present

No. of people present

Water availability

Sensory-specific satiety

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