3 Different Sugars, and Which One should We Pick? Glucose, sucrose, fructose
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Core Definitions of Three Sugars
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Glucose: The primary simple sugar directly absorbed by the body for cellular energy and central to all carbohydrate metabolism.
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Fructose: Metabolized mainly in the liver; it doesn’t directly trigger insulin secretion but excessive intake can burden hepatic function.
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Sucrose: A disaccharide of one glucose and one fructose, requiring enzymatic cleavage before absorption.
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Absorption & Metabolic Pathways
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Glucose
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Rapidly absorbed via intestinal epithelium into the bloodstream;
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CGM data show a sharp rise and fall after pure glucose intake;
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SIBIONICS CGM captures these fluctuations in real time, guiding optimal meal composition.
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Fructose
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First passes through the portal vein to the liver, converted to glycogen or further to glucose;
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Has minimal direct impact on insulin, though high chronic fructose can impair liver health;
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While its effect on glucose is indirect, SIBIONICS’s CGM still reflects hepatic metabolic strain.
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Sucrose
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Cleaved by sucrase in the small intestine into one molecule each of glucose and fructose;
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SIBIONICS CGM tracks the immediate glucose spike post-cleavage and correlates it with fructose metabolism for comprehensive management.
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Food Sources & GI Comparison
Sugar Type | Common Sources | Typical GI | CGM Feedback Characteristics |
Glucose | Grapes, honey, energy drinks | 100 | High peak, rapid rise, fast drop |
Fructose | Fruit juices, sweet fruits, HFCS | 19 | Low peak, gradual rise, prolonged |
Sucrose | Table sugar, desserts, sodas | 65 | Intermediate, single or dual peaks |
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SIBIONICS CGM in Daily Nutrition Management
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Real‐time Monitoring: Continuously logs glucose spikes post‐meal;
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Trend Analysis: Balances insights on fructose and sucrose intake to refine meal planning;
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Personalized Guidance: SIBIONICS offers precise diet and activity recommendations based on your CGM data;
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Long‐term Health: Comparing CGM curves from different sugar sources helps improve liver and insulin function.