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ALCOHOL
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WHAT IS IT? Ethanol comes from the fermentation of carbohydrates.
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Different sources of alcohol
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Alcohol Digestion Absorption Digestion Very little in mouth
10% in stomach 90% duodenum Takes 1 minute to reach brain Digestion Most completely digested nutrient Straight from intestines to portal vein
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Alcohol Metabolism Alcohol Metabolism or Detoxification is conducted in the liver TOXIC! Ethanol ¸ Acetaldehyde ¸ Acetic Acid ¸ CO2 + Heat ù ù ù Alcohol Acetaldehyde Can be converted Dehydrogenase Dehydrogenase to Acetyl-CoA for use in TCA cycle
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Nutritional Problems Unavailability of NAD (needed for TCA)
Build up of NADH + H (promotes ketosis) Buildup of congeners Prevents oxidation of fat Acts as a “folate pump” Destroys or affects metabolism of Vitamins: B6, B1, B3, and minerals: K, CA and Zn Impairs intestinal and liver cells Dehydration
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Other Problems Brain cell destruction and cognitive impairment
Increase in esophageal, pancreatic, mouth and gastric cancers Can lower blood glucose in diabetics Increase accidents and STD’s Disrupts MEOS
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Nutritional/Health Benefits
Decreases LDL, increases HDL Provides antioxidants Decreases risk of stroke and Alzheimer’s Increases life expectancy Does not promote obesity
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Odd Facts In the early 1900’s alcohol was a main ingredient for enteral feedings The bacteria in our colon produces about 40 grams of alcohol a day The yearly death rate associated with suicide is higher than that from all alcohol related diseases combined
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