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Related Experiment Videos

Carbohydrate-induced thermogenesis in man.

E Jequier

    International Journal for Vitamin and Nutrition Research. Internationale Zeitschrift Fur Vitamin- Und Ernahrungsforschung. Journal International De Vitaminologie Et De Nutrition
    |January 1, 1986
    PubMed
    Summary

    Carbohydrate metabolism influences thermogenesis. This study reveals glucose-induced thermogenesis in young adults is 12-15%, comprising obligatory and facultative components.

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    Area of Science:

    • Metabolic Physiology
    • Nutritional Science
    • Human Metabolism

    Background:

    • Thermogenesis, the production of heat in organisms, is influenced by nutrient metabolism.
    • Understanding carbohydrate's role in energy expenditure is crucial for metabolic health.
    • Previous studies suggest varying thermogenic responses to carbohydrate intake.

    Purpose of the Study:

    • To quantify glucose-induced thermogenesis in humans.
    • To investigate the metabolic utilization of carbohydrates and its impact on energy expenditure.
    • To differentiate between components of the thermogenic response to glucose.

    Main Methods:

    • Utilized the glucose clamp technique to maintain steady-state glucose and insulin levels.
    • Employed open-circuit indirect calorimetry to continuously measure energy expenditure.
    • Combined these methods to determine glucose storage rates and thermogenesis.

    Main Results:

    • Glucose-induced thermogenesis in young adults was measured at 12-15% of the ingested glucose energy load over three hours.
    • Identified two distinct components contributing to the thermogenic response: obligatory and facultative thermogenesis.
    • Obligatory thermogenesis reflects the energy cost of glucose storage, while facultative thermogenesis represents an energy-dissipative process.

    Conclusions:

    • The thermogenic effect of carbohydrates is directly linked to their metabolic utilization.
    • The study validates a two-component model for glucose-induced thermogenesis.
    • This research provides quantitative insights into the energy expenditure associated with carbohydrate metabolism.

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