alcohol and nutrition
DESCRIPTION
Beverages. Liver. Excretion. Alcohol and Nutrition. Absorption. Metabolism. Malnutrition. Nutrition Facts. University Use. Short-term Effects. Long-term Effects. Quiz. Brain. Liver Deterioration. Alcohol in Beverages. Each of these servings equals one drink. Alcohol in the Stomach. - PowerPoint PPT PresentationTRANSCRIPT
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Alcohol and Nutrition
Beverages
Brain
Absorption
Liver
Liver Deterioration
Excretion
Metabolism
Quiz
Malnutrition
Nutrition Facts
Short-term Effects
Long-term Effects
University Use
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Alcohol in Beverages
Each of these
servings equals one
drink
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Alcohol in the Stomach
• 20% absorbed immediately in empty stomach
• Food slows absorption• Enzyme: Alcohol
Dehydrogenase- decreases amount of alcohol entering the blood by 20%
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Alcohol in the Liver• Processes one
drink per hour or ½ oz. of ethanol
• Alcohol makes the biggest impact on the liver
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NAD+ NADH + H+ NAD+ NADH + H+
Alcohol (ethanol) Alcohol
dehydrogenaseAcetaldehyde
dehydrogenase
Acetaldehyde Acetate Acetyl CoA
CoA
Alcohol Metabolism
•High concentration of acetaldehyde to brain and other tissues are responsible for many of the damaging effects
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Liver Deterioration1. Fatty Liver
– Accumulation of fat
2. Fibrosis– Cells:
• lose their function • characteristics of
connective tissue cells
3. Cirrhosis– Cells:
• die• permanently lose their
function
Cirrhosis
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Excretion of Alcohol• Alcohol is not
digested nor chemically changed in the blood stream
• Amount of alcohol in breath and urine proportional to amount still in bloodstream
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Alcohol’s Effects on the Brain
• 0.05- Impaired judgment, relaxed inhibitions, altered heart rate• 0.10- Impaired coordination, delayed reaction time, exaggerated
emotions, impaired peripheral vision, impaired ability to operate a vehicle
• 0.15- Slurred speech, blurred vision, staggered walk, seriously impaired coordination and judgment
• 0.20- Double vision, inability to walk• 0.30- Uninhibited behavior, confusion, inability to
comprehend• 0.40 to 0.60- Unconsciousness, shock, coma, death
(cardiac or respiratory failure)
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Nutrition Facts• Contributes to fat
storage in central region aka “Beer Belly”
• 7 kcal/gram• Recommendation: Not
more than two drinks/day for average-size man; one drink/day for average-size woman
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Alcohol & Malnutrition• Primary Malnutrition-
alcohol displaces food
• Secondary Malnutrition-alcohol interferes with digestion and absorption of nutrients
Wernicke-Korsakoff syndrome- Thiamin deficiency
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Alcohol’s Short-Term Effects
• Binge Drinking (4+ or 5+ drinks)– Alcohol Poisoning
• Alcohol consumption:– Suicide (33%)– Homicide (50%)– Accidents (50%)
• DE (2002) DE (2007)-> 51 fatalities 19 fatalities
– Violence (Robbery, rape, assault)– Victim of crime– Injury (falls, drownings, fire)
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Alcohol’s Long-Term Effects
• Fetal Alcohol Syndrome
• Liver Disease• Kidney Disease• Heart Disease• Cancer
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University Use• Students drink 4 billion cans of beer yearly• 360,000 of 12 million undergraduates will
die from alcohol-related causes while in school
• Nearly ½ of college students are binge drinkers
• Average student spends $900 per year on alcohol (books $450/year)
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1. What is considered one drink?A. 10 oz. beerB. 6 oz. glass of wineC. 1 ½ oz. hard liquorD. 8 oz. wine cooler
2. What is Delaware’s Blood Alcohol Concentration Limit?A. .20B. .05C. .10D. .08
3. What is the approximate BAC when a person has slurred speech, staggered walk & blurred vision? A. .30 B. .15 C. .10 D. .05
Answers: 1. C 2. D 3. B
Quiz