Satiety

Satiety is the feeling of fullness and the suppression of hunger for a period of time after a meal. The feeling of satiety occurs due to a number of bodily signals that begin when a food or drink is consumed and continue as it enters the gut and is digested and absorbed.

Physiology of Satiety

The feeling of satiety is regulated by a number of factors that begin at the very start of a meal and continue for hours afterwards. It is influenced by a number of factors including the volume, energy density, nutrient composition, and palatability of a meal, as well as an individual's physical activity level and previous eating experiences.

Factors Influencing Satiety

Several factors can influence the feeling of satiety. These include:

• Volume of food: Consuming a large volume of food can increase feelings of fullness and reduce hunger.
• Energy density: Foods that are high in energy density, or calories per gram, can increase feelings of fullness and reduce hunger.
• Nutrient composition: The nutrient composition of a meal can also influence feelings of fullness. For example, protein is more satiating than either carbohydrates or fats.
• Palatability: Highly palatable foods can decrease feelings of fullness and increase hunger.
• Physical activity: Physical activity can also influence feelings of fullness. For example, exercise can increase hunger in the short term, but can increase feelings of fullness in the long term.

Satiety and Weight Management

Understanding the concept of satiety and the factors that influence it can be helpful for weight management. By choosing foods that are high in volume but low in energy density, individuals can feel full while consuming fewer calories. Similarly, choosing foods that are high in protein can also help to increase feelings of fullness and reduce overall calorie intake.

See Also

• Appetite
• Hunger
• Nutrition
• Weight management

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