Dietary starch

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dietary carbohydrate

Facts (generated by robot; please edit if you find it inaccurate)

• When dietary starch is not digested, and the calories therefore not absorbed in the upper digestive tract, the undigested starch moves to the colon, where it is partially digested by the colon microflora (bacteria).
• Dietary starch is converted to glucose, which the body stores for relatively short periods as glycogen, a high molecular-weight polymer of glucose.
• Most of the dietary starch is supplied by cereal grains.
• Even though digestible dietary starch is presented to the intestine, there is no net glucose absorption at the portal vein, and plasma glucose levels remain relatively unaffected.
• Thus, for fish species such as trout, as the proportion of dietary starch is increased, starch digestibility decreases accordingly (Singh and Nose, 1967; Bergot and Breque, 1983).

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