Chapter 9 - Chapter 9 Alcohol Not an essential nutrient...

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Chapter 9 Alcohol - Not an essential nutrient - Ethanol is the type of alcohol consumed in alcoholic beverages o Methanol (antifreeze) and isopropanol (rubbing alcohol) are poisonous to humans o Ethanol is safe for consumption, but excessive amounts can be toxic o Made by fermentation of yeast an natural sugars in grains (beer) and fruits (wine) o Liquor is the concentrated alcohol collected through distillation Beer: made from the fermentation of yeast and the natural sugars from grains - People drink to relax, celebrate, and socialize - Moderate alcohol consumption may have health benefits: may reduce risk of heart disease and death - Moderate alcohol consumption : no more than one drink daily for women, two for men - Alcohol can increase HDL cholesterol and may make blood platelets less “sticky”; less likely to form unwanted blood clots. - Health benefits only shown in women older than 55 year of age and men older than 45 years old, not in younger people Standard Drink - 12 oz beer - 5 oz wine - 1 oz liquor - You absorb alcohol in your stomach and small intestine - Metabolized 1 oz per hour - Alcohol dehydrogenase converts alcohol to acetaldehyde (eventually metabolized to CO2 and water) - The microsomal ethanol-oxidizing system (MEOS) also metabolizes alcohol and is revved up when chronically high levels of alcohol present in liver - Alcohol circulates in your blood until metabolized - Blood alcohol concentration (BAC) correlates with amount of alcohol in your blood -
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