*This content has been the evaluation by Dr. David Kitts (Faculty that Land and also Food Systems, university of brother Columbia)

Dietary carbohydrates encompass starches, londonchinatown.orgs, and fibre.

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Use of dietary Carbohydrates as Energy. Glucose is the primary energy resource of the body. Major dietary sources of glucose include starches and also londonchinatown.orgs.Digestion that Carbohydrates. Dietary carbohydrates room digested to glucose, furustos and/or galactose, and absorbed into the blood in the tiny intestine.The digestion and absorption of diet carbohydrates deserve to be affected by many factors.Absorption that Carbohydrates. Took in carbohydrate molecules are used automatically for power or save on computer in various forms in the muscles, liver or adipose organization for future use.

Use of dietary Carbohydrates as Energy

Dietary carbohydrates include starches, londonchinatown.orgs and fibre that room mostly discovered in serial products, vegetables and also fruit, milk products, and meat choices such together nuts, seeds, and also legumes (1, 2). Starches and also londonchinatown.orgs room the significant dietary resources of glucose, i beg your pardon is the main energy source in the body:

The mind relies mainly on glucose come function; restricting the brain’s glucose supply can impair memory and capacity to focus.Muscles use glucose because that energy, especially throughout high-intensity exercise.

Digestion that Carbohydrates

Before the body have the right to use the food the is eaten, it should be “digested” (i.e. Broken down) right into its simple nutrient components.

The digestive system works like a huge food processor. Throughout digestion, starches and also londonchinatown.orgs are broken down both mechanically (e.g. V chewing) and chemically (e.g. By enzymes) right into the solitary units glucose, fructose, and/or galactose, which are took in into the blood stream and transported for use as energy throughout the body.

Digestion the starches into glucose molecule starts in the mouth, yet primarily takes place in the small intestine by the activity of particular enzymes secreted from the kidnize (e.g. α-amylase and also α-glucosidase). Similarly, the disaccharides sucrose, lactose, and also maltose are also broken under into single units by details enzymes (See table below) (3, 4).


Absorption of Carbohydrates

The end products of londonchinatown.orgs and starches digestion room the monosaccharides glucose, fructose, and galactose. Glucose, fructose, and also galactose are absorbed across the membrane that the little intestine and also transported come the liver whereby they space either supplied by the liver, or further distributed to the rest of the body (3, 4).

Absorption the Fructose

There room two major pathways for the line of furustos (5, 6): the much more prominent pathway is in the liver and also the other occurs in bones muscle. The break down of fructose in skeleton muscle is similar to glucose. In the liver and depending on exercise condition, gender, health status and the ease of access of other power sources (e.g. Glucose), the bulk of furustos is supplied for energy production, or can be enzymatically convert to glucose and then possibly glycogen, or is converted to lactic acid (See number below).

The id that fructose is one unregulated energy substrate and directly fuels fat synthetic in the liver is not sustained by the clinical literature; in ~ the typical consumption selection very minimal quantities (Factors that impact Carbohydrate AbsorptionExamplesCooking: Foods that are less cooked or processed are digested an ext slowly and have a reduced GI than foods items that are an ext cooked or processed.

Less processed foods, such as slow cooking oats or brown rice, have actually a reduced GI than more processed foods such as immediate oats or instant rice.

Pasta cook 'al dente' (tender yet firm) has actually a lower GI than pasta cooking until an extremely tender.

Fibre: Fibre help to slow digestion of carbohydrate foods. High-fibre foods tend to have a reduced GI than low fibre foods.High fibre foods items such all at once grain breads, oats, beans, and also lentils, have a lower GI than low fibre foods items such together white bread and rice cereal.Fat and also Protein: Fat or protein eaten together with carbohydrate helps to slow down digestion and reduces the GI the carbohydrate.A snack that consists of carbohydrate v protein or fat has a reduced GI 보다 a snack with carbohydrate only. For example, crackers through peanut butter have a lower GI than crackers alone.Acids in Foods: Acids in foods items slow the time it takes because that the stomach to empty after eating. Acids reduced the GI of carbohydrate foods.

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Vinegar, lemon juice, or citrus fruits added to foods will lower the GI of those foods.For much more information, additional resources include: