WGU D440 NUTRITIONAL SCIENCE CH.1
| OA |OBJECTIVE ASSESSMENT | EXM
QUESTIONS AND ANSWERS | LATEST
UPDATE 2026
Nutrition -CORRECTANSWER The intake of food, considered in relation to the body's
dietary needs
Nutrition Science -CORRECTANSWER The study of the effects of food components on
the metabolism, health, performance, and disease resistance of human beings and
animals
Dietetics -CORRECTANSWER The use of evidence-based practices in the area of food
and nutrition to improve and maintain good health
Registered Dietitian Nutritionist (RDN) -CORRECTANSWER Food and nutrition expert
who has met specific academic and training criteria to earn the nationally accredited
RDN license
Health -CORRECTANSWER A state of complete physical, mental, and social well-
being and not merely the absence of disease or infirmity
,Wellness -CORRECTANSWER Full potential development for all people within their
environments.
Balance between activities and goals (e.g., play and work)
Health Promotion -CORRECTANSWER The process of enabling people to increase
control over and improve their health
Essential Nutrients -CORRECTANSWER Nutrients that the body cannot synthesize on
its own—or not in an adequate amount—and must be provided by the diet. They are
necessary for the body to function properly.
What are the SIX Essential Nutrients? -CORRECTANSWER 1) Carbohydrates
2) Protein
3) Fat
4) Vitamins
5) Minerals
6) Water
Nonessential Nutrients -CORRECTANSWER Nutrients that are made naturally in the
body. They can also be absorbed through certain foods. Even though they are referred
to as nonessential, they are still important in maintaining health.
, Name 2 examples of Nonessential Nutrients -CORRECTANSWER 1) Nonessential
Amino Acids
2) Cholesterol
Energy-yielding Nutrients
aka: ?? -CORRECTANSWER Nutrients that provide the body with energy that is
measured in calories.
aka: Macronutrients; because they are required by the body in large quantities relative
to micronutrient requirements (e.g., vitamins and minerals).
Name 3 examples of Energy-yielding Nutrients -CORRECTANSWER 1) Carbohydrates
2) Fats
3) Proteins
Nutrient Density -CORRECTANSWER Refers to how many nutrients are present in a
food, given the number of calories it contains. It is a simple way to connect nutrients
with calories.
Name examples of Nutrient-rich (or nutrient-dense) foods -CORRECTANSWER
Vegetables, fruits, whole grains, seafood, eggs, beans and peas, unsalted nuts and
seeds, fat-free and low-fat dairy products, and lean meats and poultry.
| OA |OBJECTIVE ASSESSMENT | EXM
QUESTIONS AND ANSWERS | LATEST
UPDATE 2026
Nutrition -CORRECTANSWER The intake of food, considered in relation to the body's
dietary needs
Nutrition Science -CORRECTANSWER The study of the effects of food components on
the metabolism, health, performance, and disease resistance of human beings and
animals
Dietetics -CORRECTANSWER The use of evidence-based practices in the area of food
and nutrition to improve and maintain good health
Registered Dietitian Nutritionist (RDN) -CORRECTANSWER Food and nutrition expert
who has met specific academic and training criteria to earn the nationally accredited
RDN license
Health -CORRECTANSWER A state of complete physical, mental, and social well-
being and not merely the absence of disease or infirmity
,Wellness -CORRECTANSWER Full potential development for all people within their
environments.
Balance between activities and goals (e.g., play and work)
Health Promotion -CORRECTANSWER The process of enabling people to increase
control over and improve their health
Essential Nutrients -CORRECTANSWER Nutrients that the body cannot synthesize on
its own—or not in an adequate amount—and must be provided by the diet. They are
necessary for the body to function properly.
What are the SIX Essential Nutrients? -CORRECTANSWER 1) Carbohydrates
2) Protein
3) Fat
4) Vitamins
5) Minerals
6) Water
Nonessential Nutrients -CORRECTANSWER Nutrients that are made naturally in the
body. They can also be absorbed through certain foods. Even though they are referred
to as nonessential, they are still important in maintaining health.
, Name 2 examples of Nonessential Nutrients -CORRECTANSWER 1) Nonessential
Amino Acids
2) Cholesterol
Energy-yielding Nutrients
aka: ?? -CORRECTANSWER Nutrients that provide the body with energy that is
measured in calories.
aka: Macronutrients; because they are required by the body in large quantities relative
to micronutrient requirements (e.g., vitamins and minerals).
Name 3 examples of Energy-yielding Nutrients -CORRECTANSWER 1) Carbohydrates
2) Fats
3) Proteins
Nutrient Density -CORRECTANSWER Refers to how many nutrients are present in a
food, given the number of calories it contains. It is a simple way to connect nutrients
with calories.
Name examples of Nutrient-rich (or nutrient-dense) foods -CORRECTANSWER
Vegetables, fruits, whole grains, seafood, eggs, beans and peas, unsalted nuts and
seeds, fat-free and low-fat dairy products, and lean meats and poultry.
