NTDT200 Lecture Notes - Lecture 4: Carbohydrate, Galactose, Fructose
2 Aug 2018
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Consumption of whole grains that are high in fiber reduces the risk of heart disease and. Recommended intake is 45% to 65% of total daily calories. What is a carbohydrate: made of carbon, hydrogen. Found in plant foods and milk: major fuel source for the body. Sucrose = fructose + glucose: maltose = glucose + glucose. The liver converts fructose and galactose to glucose. Broken down to provide glucose in the blood. Broken down to provide energy to do work carbohydrate. Fruits: many vegetables, milk, refined sugars added to processed foods, add flavor. Increase ________density: decrease ________density, contribute to obesity, carbohydrate intake recommendations. Carbohydrate absorption: monosaccharides are absorbed by small intestine then transported to the blood. Hydrolyzes lactose to produce one glucose and one galactose monosaccharide. Hydrolyzes sucrose to produce one glucose and one fructose monosaccharide. Continue digestion of starch into maltose and glucose. Carried to the liver and converted to glucose. Soluble: minimally processed whole grains, vegetables, fruits, beans.
