Nutrition Exam 1 (Chapter 2) questions with correct answers
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What are the Dietary Reference Intakes? Correct Answer-The Dietary Reference Intakes (DRI) is a set of values for all of the vitamins, minerals, carbohydrates, fiber, lipids, protein, water, and energy. They are recommendations set by a committee of nutrition science experts which indicate adequate...
Nutrition Exam 1 (Chapter 2) questions with correct
answers
What are the Dietary Reference Intakes? Correct Answer-The Dietary
Reference Intakes (DRI) is a set of values for all of the vitamins,
minerals, carbohydrates, fiber, lipids, protein, water, and energy. They
are recommendations set by a committee of nutrition science experts
which indicate adequate and safe intakes of essential nutrients. Values
set by the DRI include the RDA, AI, EAR, UL, and AMDR.
What is the Acceptable Macronutrient Distribution Range, and what are
its specific values? Correct Answer-The Acceptable Macronutrient
Distribution Range (AMDR) is a set of healthy ranges of intake for
carbohydrate, fat, and protein set by the DRI committee.
Recommendations for calories from each of the energy yielding
nutrients are expressed as a percentage of the day's total calorie intake.
The recommendation is 45 to 65 percent of total calories from
carbohydrate, 20 to 35 percent from fat, and 10 to 35 percent from
protein.
Which is the most appropriate use of information on Daily Values?
Correct Answer-The Daily Values are ideal for allowing comparisons
among foods. For example a person can compare the calories between
two types of cereals.
A panel of nutrition scientists is studying the adequacy of Americans'
nutrient intake. Which set of Dietary Reference Intakes would be used
for establishing policies and recommendations? Correct Answer-The
EAR is the average daily nutrient intake estimated to meet the
requirement of half of the healthy individuals in a particular life stage
, and gender group. It is helpful to assess nutrient intakes of populations
and consequently make recommendations.
What is the recommended intake for iron for a 20 year old female? For a
20 year old male? Correct Answer-According to the RDA, the
recommended intake for iron for a 20 year old female is 18 mg per day.
The recommended intake for a 20 year old male is 8 mg per day.
What is the recommended intake for vitamin A, for an 18 year old
female? How much is too much? Correct Answer-According to the
RDA, the recommended intake for vitamin A for an 18 year old female
is 700µg/day. (µg means microgram, which is one thousandths of a
milligram or mg. A milligram is one thousandth of a gram.) According
to the UL, Vitamin A has a toxicity level of 2800 µg/day for an 18 year
old female.
How much is too much vitamin C, for an adult? Correct Answer-The UL
for vitamin C is 2000 mg/day for an adult. The UL is the highest average
daily intake level that is likely to pose no risk for toxicity. Adults should
not consume more than the UL level.
Grandma Jenkins is concerned about osteoporosis, so she takes 6
calcium supplements daily, each with 600 mg calcium. What is the
accurate assessment of her intake? Correct Answer-Grandma Jenkins'
recommended intake is 1200 mg of calcium per day. In her supplements
alone she is getting 3600 mg of calcium per day, which is well above the
amount recommended. In fact, she is also well above the UL for calcium
which is 2500 mg/day. Any intake above the UL may be toxic and is
unsafe.
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