notes/education/nutrition/Carbohydrates.md

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- Carbohydrates are a class of nutrients that is a major source of energy for the body
- Can also server as a glue that holds cells togehter
- Classified as simple or complex
- Plants are rich sources of carbohydrates
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There are 3 categories of carbs.
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# Sugars
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- A **monosaccharide** is a simple sugar that is the basic molecule of carbohydrates:
- Glucose: Primary fuel for muscles, nerves, and other cells, the most common.
- Fructose: In **fruits**, honey, and certain vegetables
- Galactose: Component of lactose
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- A **disaccharide** is a simple sugar comprised of two monosaccharides.
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- Maltose: Disaccharide composed of two glucose molecules "malt sugar"
- Sucrose: Disaccharide composed of a glucose and fructose molecule "table sugar"
- Lactose: Disaccharide composed of a glucose and a galactose molecule "milk sugar"
- High fructose corn syrup is a syrup obtained from the processing of corn
- No conclusive evidence that the use of HFCS causes poor health and disease
- Excessive calories from beverages sweetened with HFCS contributes to increased risk for diabetes and heart disease
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- Nutritive sweeteners are substances that sweeten and contribute energy to foods
- Each gram of mono or disaccharide supplies 4 kcal
- Added sugars are sugars added to foods during processing or prep
- The main source of added sugars in the American diet is sugar sweetened beverages.
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- Alternative sweeteners are substances that sweeten foods while providing few or no calories
- Sugar alcohols are alternative sweeteners use to replace sucrose in some some sugar free foods:
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- Sorbitol, xylitol, mannitol
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- Not fully absorbed by the intestinal tract
- Supply 2kcal/g
- Can cause diarrhea when consumed
- Non-nutritive sweeteners are a group of synthetic compounds that are intensely sweet tasting compared to sugar
- Examples include Aspertame, Saccharin, Acesulfame-K, Neotame, and Sucralose
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# Starches
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Complex carbs have 3 or more monosaccharides bonded together
- Starch is a storage polysaccharide in plants.
- Composed of amylose and amylopectin
- Rich sources include:
- Bread and cereal products made from wheat, ric
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# Fiber