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DHN 101 EXAM 3 PREP 2026 ALL QESTIONS
AND CORRECT DETAILED ANSWERS
ALREADY A GRADED WITH EXPERT
FEEDBACK |NEW AND REVISED
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? - 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 vitamins? -
ANSWER- you can add olive oil or margarine to vegetables after they
are cooked
A food product that contains fat has the potential for spoilage when that
fat becomes oxidized and rancid. The germ in the whole wheat kernel
contributes fat to whole wheat bread products. If a bread's ingredient list
contains whole wheat flour, water, yeast, sugar, and BHT, which
ingredient is serving as the antioxidant intended to extend the bread's
shelf life? - ANSWER- BHT
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In order to be classified as a vitamin, a compound must meet a number
of criteria to be an essential nutrient. Check all that apply: - ANSWER-
the body can't synthesize enough of the compound to maintain health
and absence of the compound from the diet for a defined period
produces deficiency symptoms that, if caught in time, are quickly cured
when the substance is resupplied
Matching vitamins with their roles - ANSWER- A: vision
D: a hormone
E: antioxidant that prevents breakdown of Vitamin A
K: activates blood clotting factors
Why are older people at increased risk for vitamin B-12 deficiency
compared to younger people? - ANSWER- As you age, your stomach
produces less acid, which limits cleavage of vitamin B-12 from food. In
addition, decreased production of intrinsic factor by the stomach limits
vitamin B-12 absorption
While breastmilk has a near-perfect nutritional profile for infants, breast
milk is low in vitamin D. Formula-fed infants who do not receive much
sunlight may also be at risk for vitamin D deficiency. Recently, the
American Academy of Pediatrics doubled its recommendation for
childhood vitamin D supplementation and now recommends that all
children receive how much vitamin D per day? - ANSWER- 400 IU
Gabe was experiencing fatigue, despite sleeping eight hours per night.
He went to the doctor and was diagnosed with iron-deficiency anemia.
The doctor recommended he eat iron-fortified breakfast cereals. Which
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food would be the best accompaniment for his iron-fortified breakfast
cereal and why? - ANSWER- He should have a cup of orange juice or
an orange with the iron-fortified breakfast cereal because vitamin C in
the orange increases iron absorption.
Alternate names for vitamins - ANSWER- Riboflavin --> Vitamin B-2
Ascorbic acid --> Vitamin C
Niacin --> Vitamin B-3
Pyridoxine --> Vitamin B-6
Recommended vitamins - ANSWER- a. Vit D → An adult woman who
is told after a bone mineral density test that she has osteomalacia
b. Vit A → A child in the developing world who stumbles frequently
and is diagnosed with night blindness
c. Vit K → A newborn baby who has difficulty with blood clotting
d. Vit E → A premature infant who is exhibiting signs of hemolysis
Vitamins are classified as being either water soluble or fat soluble. There
is disagreement in the scientific community as to whether one vitamin-
like nutrient is really a vitamin. Which nutrient is not technically
classified as a vitamin? - ANSWER- Choline
Fat-soluble vitamins - ANSWER- vitamins that travel with dietary fats
through the blood stream, vitamins that are stored mostly in the liver and
fatty tissues, and vitamins A, D, E, and K
DHN 101 EXAM 3 PREP 2026 ALL QESTIONS
AND CORRECT DETAILED ANSWERS
ALREADY A GRADED WITH EXPERT
FEEDBACK |NEW AND REVISED
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? - 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 vitamins? -
ANSWER- you can add olive oil or margarine to vegetables after they
are cooked
A food product that contains fat has the potential for spoilage when that
fat becomes oxidized and rancid. The germ in the whole wheat kernel
contributes fat to whole wheat bread products. If a bread's ingredient list
contains whole wheat flour, water, yeast, sugar, and BHT, which
ingredient is serving as the antioxidant intended to extend the bread's
shelf life? - ANSWER- BHT
,2|Page
In order to be classified as a vitamin, a compound must meet a number
of criteria to be an essential nutrient. Check all that apply: - ANSWER-
the body can't synthesize enough of the compound to maintain health
and absence of the compound from the diet for a defined period
produces deficiency symptoms that, if caught in time, are quickly cured
when the substance is resupplied
Matching vitamins with their roles - ANSWER- A: vision
D: a hormone
E: antioxidant that prevents breakdown of Vitamin A
K: activates blood clotting factors
Why are older people at increased risk for vitamin B-12 deficiency
compared to younger people? - ANSWER- As you age, your stomach
produces less acid, which limits cleavage of vitamin B-12 from food. In
addition, decreased production of intrinsic factor by the stomach limits
vitamin B-12 absorption
While breastmilk has a near-perfect nutritional profile for infants, breast
milk is low in vitamin D. Formula-fed infants who do not receive much
sunlight may also be at risk for vitamin D deficiency. Recently, the
American Academy of Pediatrics doubled its recommendation for
childhood vitamin D supplementation and now recommends that all
children receive how much vitamin D per day? - ANSWER- 400 IU
Gabe was experiencing fatigue, despite sleeping eight hours per night.
He went to the doctor and was diagnosed with iron-deficiency anemia.
The doctor recommended he eat iron-fortified breakfast cereals. Which
, 3|Page
food would be the best accompaniment for his iron-fortified breakfast
cereal and why? - ANSWER- He should have a cup of orange juice or
an orange with the iron-fortified breakfast cereal because vitamin C in
the orange increases iron absorption.
Alternate names for vitamins - ANSWER- Riboflavin --> Vitamin B-2
Ascorbic acid --> Vitamin C
Niacin --> Vitamin B-3
Pyridoxine --> Vitamin B-6
Recommended vitamins - ANSWER- a. Vit D → An adult woman who
is told after a bone mineral density test that she has osteomalacia
b. Vit A → A child in the developing world who stumbles frequently
and is diagnosed with night blindness
c. Vit K → A newborn baby who has difficulty with blood clotting
d. Vit E → A premature infant who is exhibiting signs of hemolysis
Vitamins are classified as being either water soluble or fat soluble. There
is disagreement in the scientific community as to whether one vitamin-
like nutrient is really a vitamin. Which nutrient is not technically
classified as a vitamin? - ANSWER- Choline
Fat-soluble vitamins - ANSWER- vitamins that travel with dietary fats
through the blood stream, vitamins that are stored mostly in the liver and
fatty tissues, and vitamins A, D, E, and K
