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Nutrition Connect 8

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symptoms of a folate deficiency include
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decreased red blood cell synthesis
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the category of vitamins that need to be replaced daily are the ____-soluble vitamins
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water
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the vitamin E content of a food may be affected by
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exposure to oxygen, exposure to sunlight, deep fat frying
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T/F vitamins are considered non-essential nutrients because we need them in small amounts
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false
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vitamin B-12 is found in ____ foods only
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animal
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identify three food sources of thiamin
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enriched flour, pork, whole grains
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the point at which toxic levels of vitamin A may develop is called the
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Tolerable Upper Intake Level
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grain products are ____ with B vitamins and the mineral iron to lessen the risk of deficiency
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enriched
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older adults are at greater risk for pernicious anemia due to
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lowered production of stomach acid and reduced output of intrinsic factor
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antioxidants help reduce the risk of cancer by
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reducing cell damage from free radicals
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the amount of a nutrient that is absorbed and available to the body is called the
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bioavailability
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which of the following are functions of vitamin C
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wound healing and formation of collage
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smokers need more vitamin C daily than non-smokers because of the
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greater stress placed on the lungs due to oxidative damage
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thiamin is a key component required to release energy from
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carbohydrates
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which of the following are good sources of vitamin C
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citrus fruits, strawberries, potatoes
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animals, unlike humans, do NOT need a daily source of vitamin C because they
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are able to synthesize the vitamin
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all grain products must be fortified with ____, a B-vitamin
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folate
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health risks for low levels of vitamin D include an increase in
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autoimmune disorders and cancer risk
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a severe vitamin A deficiency can lead to xeropthalmia, which results in
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blindness
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____ ____ is an early sign of vitamin A deficiency
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night blindness
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foods that are good sources of vitamin E include
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nuts, plant oils, and whole grains
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a person with dark skin would need a ____ exposure time to sunlight to synthesize vitamin D
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longer
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the ____-soluble vitamins are more readily stored in the body than ____-soluble vitamins
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fat;water
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water-soluble vitamins are not usually stored because they are
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filtered and excreted by the kidneys
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food sources of riboflavin include
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milk, eggs, and enriched grains
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fish and fish oils and liver are natural sources of
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preformed vitamin A
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the components in vitamins thought to be responsible for reducing the risk of cancer by destroying free radicals are
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antioxidants
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risk factors associated with osteomalacia
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kidney disease and poor intestinal absorption
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the vitamin content of fresh fruits and vegetables
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can be lost through improper handling
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dietary sources of niacin include
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poultry, beef, and fish
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the highest folate content may be obtained from eating
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fresh fruits and vegetables
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pellagra, the deficiency disease for niacin, is characterized by
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dementia, diarrhea, and dermatitis (4 D’s, ..death)
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enhances iron absorption
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vitamin C
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infants are given an injection of vitamin K at birth because
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their intestines lack enough bacteria to produce vitamin K
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the deficiency disease associated with inadequate intake of vitamin D is
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rickets
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vitamin C may reduce cancer risk due to its ____ properties
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antioxidant
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how might a person who consumes a diet adequate in fat still develop a fat-soluble vitamin deficiency
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inefficient fat digestion and absorption
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examples of processes that can cause a loss of certain vitamins
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improper storage, heating or cooking, and exposure to light
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what substance produced by the digestive system is necessary in order to absorb vitamin B-12
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intrinsic factor
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consuming large amounts of fat-soluble vitamins is a problem because they
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are stored in the body
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the fact that fat-soluble vitamins are stored in fat calls ____ our risk of toxicity if megadoses are consumed
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increases
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____, a B vitamin, is important in DNA synthesis
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folate
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megadoses of vitamin C
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are excreted from the body
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high intakes of nicotinic acid can lead to
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itching, facial flushing, and headahce
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identify the fat-soluble vitamin most likely to be deficient
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vitamin D
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identify the sources of vitamin K
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canola oil, green leafy, vegetables, and broccoli
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Mary tells you that she is taking 1 g of vitamin C daily to prevent a cold. what would you tell Mary
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she is wasting her money; excess vitamin C is excreted from the body
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the deficiency disease for vitamin C is called
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scurvy
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which of the following foods is the best source of niacin
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tuna, 3 oz
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older people are at risk of folate deficiency because they
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have decreased absorption and tend to have inadequate consumption
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the red blood cells of a folate-deficient person differ from a healthy person by
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becoming very large and unable to divide due to the lack of DNA
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to meet the daily requirements for folate, a person might include which foods in their diet
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enriched cereals and green leafy vegetables