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Triglyceride concentrations: the disaccharide effect.

R G Thompson, J T Hayford, J A Hendrix

    Science (New York, N.Y.)
    |November 16, 1979
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    Dietary sucrose intake significantly increases 24-hour triglyceride levels compared to glucose and fructose. However, fasting plasma triglyceride concentrations remain unaffected by the form of sugar consumed.

    Area of Science:

    • Biochemistry
    • Nutrition Science
    • Metabolic Studies

    Background:

    • Dietary carbohydrates, particularly sugars, influence lipid metabolism.
    • Sucrose is a disaccharide composed of glucose and fructose, which can be metabolized differently than their constituent monosaccharides.

    Purpose of the Study:

    • To investigate the differential impact of sucrose versus its component monosaccharides on plasma triglyceride concentrations.
    • To compare postprandial and fasting triglyceride responses to different sugar formulations.

    Main Methods:

    • Human participants consumed controlled diets containing sucrose or equivalent amounts of glucose and fructose.
    • Plasma triglyceride levels were measured over a 24-hour period post-consumption.
    • Plasma triglyceride levels were also assessed after a 12-hour fast.

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    Main Results:

    • A significantly higher mean 24-hour integrated triglyceride concentration was observed following sucrose ingestion compared to the combined monosaccharides.
    • No significant difference in plasma triglyceride levels was detected after a 12-hour fast between the dietary groups.

    Conclusions:

    • Dietary sucrose, as opposed to its monosaccharide components, leads to a pronounced elevation in 24-hour triglyceride levels.
    • The metabolic impact on triglyceride levels differs between acute sugar intake and fasting states, highlighting sucrose's specific postprandial lipogenic effect.