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DHN 101 EXAM 3-WELL REVISED ASSESSMENT
WITH PERFECTLY ANSWERED QUESTIONS
2026
Gabe's elderly neighbor told him that when he was growing up, the milkman
would deliver glass bottles of milk to his family's doorstep. He wonders why milk is
not available in glass bottles anymore. Gabe explains to him that light destroys
certain water-soluble vitamins in milk and milk is now stored in opaque containers
to help preserve the B vitamin - correct-answer -riboflavin
Side effects of vitamins - correct-answer -Niacin --> Skin flushing
Vitamin A --> birth defects
Vitamin C --> diarrhea and GI tract discomfort
Folic acid --> can mask vitamin B-12 deficiency
Vitamin A containing foods from lowest to highest - correct-answer -beef liver,
pumpkin, cooked carrots, milk
What function do many B vitamins serve in the production of energy? - correct-
answer -the function as co-enzymes
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The only source of retinoids, also called ______, is also found in animal foods like
fish and organ meat. - correct-answer -performed vitamin A
Plants contain pigments called ______ that can be turned into vitamin A in the
body if needed. - correct-answer -carotenoids
These pigments are also called provitamin A; the most potent form of provitamin
A is ______, the orange-yellow pigment in carrots and other orange and yellow
vegetables and fruits - correct-answer -beta-carotene
Other provitamin A carotenoids include zeaxanthin and _____, two important
components of the macula that help eye health. - correct-answer -lutein
Matching vitamins with food sources - correct-answer -E: plant oils
D: fortified milk
K: dark green leafy vegs
C: citrus fruits
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Vitamin supplements are sometimes used by the general public for therapeutic
purposes. Of the following medicinal uses of vitamins, which vitamin
supplement/health outcome is the only one proven in scientific research to be
beneficial? - correct-answer -nicotinic acid ( a form of niacin) for lowering LDL and
increasing HDL levels
Performed vitamin A carotenoids - correct-answer -liver, fish oils, fortified milk,
eggs, fortified margarine
Provitamin A carotenoids - correct-answer -carrots, spinach, winter squash, sweet
potatoes, mangoes
Gabe's grandfather has a history of heart disease and is on anticoagulant drug
therapy. His prescription drugs include Coumadin (warfarin). What dietary
precaution should his grandfather be taking? - correct-answer -avoid any large
increases in dark green, leafy vegetable intake because vitamin K can reduce
effectiveness of anticoagulants and promote blood cells
Vitamin A in the form of beta-carotene is a fat-soluble pro-vitamin found primarily
in dark orange and yellow fruits and vegetables. Fat is required to transport fat-
soluble nutrients, but most fruits and vegetables that are good sources of this fat-
soluble pro-vitamin are low in fat or fat-free. How can you enhance the body's
absorption of fat-soluble pro-vitamins when preparing low-fat foods rich in these
DHN 101 EXAM 3-WELL REVISED ASSESSMENT
WITH PERFECTLY ANSWERED QUESTIONS
2026
Gabe's elderly neighbor told him that when he was growing up, the milkman
would deliver glass bottles of milk to his family's doorstep. He wonders why milk is
not available in glass bottles anymore. Gabe explains to him that light destroys
certain water-soluble vitamins in milk and milk is now stored in opaque containers
to help preserve the B vitamin - correct-answer -riboflavin
Side effects of vitamins - correct-answer -Niacin --> Skin flushing
Vitamin A --> birth defects
Vitamin C --> diarrhea and GI tract discomfort
Folic acid --> can mask vitamin B-12 deficiency
Vitamin A containing foods from lowest to highest - correct-answer -beef liver,
pumpkin, cooked carrots, milk
What function do many B vitamins serve in the production of energy? - correct-
answer -the function as co-enzymes
,2|Page
The only source of retinoids, also called ______, is also found in animal foods like
fish and organ meat. - correct-answer -performed vitamin A
Plants contain pigments called ______ that can be turned into vitamin A in the
body if needed. - correct-answer -carotenoids
These pigments are also called provitamin A; the most potent form of provitamin
A is ______, the orange-yellow pigment in carrots and other orange and yellow
vegetables and fruits - correct-answer -beta-carotene
Other provitamin A carotenoids include zeaxanthin and _____, two important
components of the macula that help eye health. - correct-answer -lutein
Matching vitamins with food sources - correct-answer -E: plant oils
D: fortified milk
K: dark green leafy vegs
C: citrus fruits
, 3|Page
Vitamin supplements are sometimes used by the general public for therapeutic
purposes. Of the following medicinal uses of vitamins, which vitamin
supplement/health outcome is the only one proven in scientific research to be
beneficial? - correct-answer -nicotinic acid ( a form of niacin) for lowering LDL and
increasing HDL levels
Performed vitamin A carotenoids - correct-answer -liver, fish oils, fortified milk,
eggs, fortified margarine
Provitamin A carotenoids - correct-answer -carrots, spinach, winter squash, sweet
potatoes, mangoes
Gabe's grandfather has a history of heart disease and is on anticoagulant drug
therapy. His prescription drugs include Coumadin (warfarin). What dietary
precaution should his grandfather be taking? - correct-answer -avoid any large
increases in dark green, leafy vegetable intake because vitamin K can reduce
effectiveness of anticoagulants and promote blood cells
Vitamin A in the form of beta-carotene is a fat-soluble pro-vitamin found primarily
in dark orange and yellow fruits and vegetables. Fat is required to transport fat-
soluble nutrients, but most fruits and vegetables that are good sources of this fat-
soluble pro-vitamin are low in fat or fat-free. How can you enhance the body's
absorption of fat-soluble pro-vitamins when preparing low-fat foods rich in these
