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Carbohydrate and satiety.

Christine Feinle1, Deirdre O'Donovan, Michael Horowitz

  • 1Department of Medicine, Royal Adelaide Hospital, SA, Australia.

Nutrition Reviews
|June 25, 2002
PubMed
Summary
This summary is machine-generated.

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Carbohydrate intake influences appetite primarily through gastrointestinal signals, not blood sugar levels. Hormones like glucagon-like peptide-1 and amylin play a role in satiety.

Area of Science:

  • Nutrition Science
  • Gastroenterology
  • Human Physiology

Background:

  • Carbohydrate consumption is a major determinant of energy intake.
  • Understanding the mechanisms by which carbohydrates affect appetite is crucial for managing body weight and metabolic health.

Purpose of the Study:

  • To review the effects of carbohydrate ingestion on subsequent food intake in humans.
  • To explore the physiological mechanisms mediating these effects.
  • To examine the influence of different monosaccharides on appetite regulation.

Main Methods:

  • Literature review of studies investigating carbohydrate effects on food intake.
  • Analysis of mechanisms involving gastrointestinal signaling, hormone release, and nutrient-receptor interactions.
  • Consideration of the impact of administration route (oral, intragastric, intraduodenal).

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Main Results:

  • Carbohydrate-induced inhibition of food intake is mainly mediated by gastrointestinal signals, including orosensory input, gastric distension, and small intestinal nutrient sensing.
  • Small intestinal nutrient sensing triggers satiety hormone release (e.g., glucagon-like peptide-1, amylin) and slows gastric emptying and intestinal transit.
  • The route of carbohydrate administration significantly impacts its effect on food intake.
  • Blood glucose and insulin changes are unlikely to be primary drivers of carbohydrate-induced satiety.

Conclusions:

  • Gastrointestinal mechanisms, rather than glycemic responses, are key to carbohydrate's role in appetite regulation.
  • Further research with standardized methodologies is needed to clarify the comparative effects of different monosaccharides on satiety.