1
ISSA NUTRITIONIST EXAM 2026/2027 | NUTRITION
CERTIFICATION | 100 VERIFIED Q&A | DETAILED
RATIONALES | PASS GUARANTEED – A+ GRADED
SECTION 1: MACRONUTRIENTS AND ENERGY – Questions 1–15
Q1: Macronutrients – Protein
The student is reviewing protein. What is the primary function of protein in the body?
A. Primary energy source
B. Build and repair tissues
C. Insulate the body
D. Transport oxygen
Correct Answer: B
Rationale: Protein is essential for building and repairing tissues, producing enzymes and hormones,
and supporting immune function. Carbohydrates and fats are primary energy sources. [100%
CORRECT]
Q2: Macronutrients – Protein
The student is reviewing protein. How many calories per gram does protein provide?
A. 2
B. 4
C. 7
D. 9
Correct Answer: B
Rationale: Protein provides 4 calories per gram. Carbohydrates also provide 4; fats provide 9;
alcohol provides 7. [100% CORRECT]
Q3: Macronutrients – Carbohydrates
The student is reviewing carbohydrates. What is the primary role of carbohydrates?
A. Build muscle
B. Provide energy
C. Store vitamins
D. Insulate organs
Correct Answer: B
Rationale: Carbohydrates are the body's preferred energy source, especially for high-intensity
exercise and brain function. [100% CORRECT]
Q4: Macronutrients – Carbohydrates
The student is reviewing carbohydrates. How many calories per gram do carbohydrates provide?
,2
A. 2
B. 4
C. 7
D. 9
Correct Answer: B
Rationale: Carbohydrates provide 4 calories per gram. [100% CORRECT]
Q5: Macronutrients – Fats
The student is reviewing fats. What is the primary function of fats?
A. Build muscle
B. Provide energy, insulate, and protect organs
C. Transport oxygen
D. Digest protein
Correct Answer: B
Rationale: Fats provide energy, insulate the body, protect organs, and aid in absorbing fat-soluble
vitamins. [100% CORRECT]
Q6: Macronutrients – Fats
The student is reviewing fats. How many calories per gram do fats provide?
A. 2
B. 4
C. 7
D. 9
Correct Answer: D
Rationale: Fats provide 9 calories per gram, the most energy-dense macronutrient. [100% CORRECT]
Q7: Macronutrients – Essential Amino Acids
The student is reviewing amino acids. How many essential amino acids are there?
A. 5
B. 9
C. 11
D. 20
Correct Answer: B
Rationale: There are 9 essential amino acids that the body cannot synthesize and must be obtained
from the diet. [100% CORRECT]
Q8: Macronutrients – Complete Proteins
The student is reviewing protein quality. What is a complete protein?
A. A protein that contains all essential amino acids
B. A protein from plants
, 3
C. A protein with no fat
D. A protein with no carbohydrates
Correct Answer: A
Rationale: A complete protein contains all 9 essential amino acids in adequate amounts. Animal
proteins are typically complete; most plant proteins are incomplete. [100% CORRECT]
Q9: Macronutrients – Fiber
The student is reviewing fiber. What is the recommended daily fiber intake for adults?
A. 10–15 g
B. 25–38 g
C. 40–50 g
D. 50–60 g
Correct Answer: B
Rationale: The recommended daily fiber intake is 25–38 grams for adults, depending on age and sex.
[100% CORRECT]
Q10: Macronutrients – Fiber Types
The student is reviewing fiber types. What is soluble fiber?
A. Fiber that dissolves in water and forms a gel
B. Fiber that does not dissolve in water
C. Fiber found only in animal products
D. Fiber that is digested completely
Correct Answer: A
Rationale: Soluble fiber dissolves in water to form a gel-like substance, helping lower cholesterol
and blood sugar. Insoluble fiber adds bulk to stool. [100% CORRECT]
Q11: Macronutrients – Fiber Types
The student is reviewing fiber types. What is insoluble fiber?
A. Fiber that dissolves in water
B. Fiber that does not dissolve in water and adds bulk to stool
C. Fiber found only in fruits
D. Fiber that is digested completely
Correct Answer: B
Rationale: Insoluble fiber does not dissolve in water, adds bulk to stool, and helps prevent
constipation. [100% CORRECT]
Q12: Macronutrients – Glycemic Index
The student is reviewing glycemic index. What is glycemic index?
A. A measure of how quickly a food raises blood glucose
B. A measure of protein quality
ISSA NUTRITIONIST EXAM 2026/2027 | NUTRITION
CERTIFICATION | 100 VERIFIED Q&A | DETAILED
RATIONALES | PASS GUARANTEED – A+ GRADED
SECTION 1: MACRONUTRIENTS AND ENERGY – Questions 1–15
Q1: Macronutrients – Protein
The student is reviewing protein. What is the primary function of protein in the body?
A. Primary energy source
B. Build and repair tissues
C. Insulate the body
D. Transport oxygen
Correct Answer: B
Rationale: Protein is essential for building and repairing tissues, producing enzymes and hormones,
and supporting immune function. Carbohydrates and fats are primary energy sources. [100%
CORRECT]
Q2: Macronutrients – Protein
The student is reviewing protein. How many calories per gram does protein provide?
A. 2
B. 4
C. 7
D. 9
Correct Answer: B
Rationale: Protein provides 4 calories per gram. Carbohydrates also provide 4; fats provide 9;
alcohol provides 7. [100% CORRECT]
Q3: Macronutrients – Carbohydrates
The student is reviewing carbohydrates. What is the primary role of carbohydrates?
A. Build muscle
B. Provide energy
C. Store vitamins
D. Insulate organs
Correct Answer: B
Rationale: Carbohydrates are the body's preferred energy source, especially for high-intensity
exercise and brain function. [100% CORRECT]
Q4: Macronutrients – Carbohydrates
The student is reviewing carbohydrates. How many calories per gram do carbohydrates provide?
,2
A. 2
B. 4
C. 7
D. 9
Correct Answer: B
Rationale: Carbohydrates provide 4 calories per gram. [100% CORRECT]
Q5: Macronutrients – Fats
The student is reviewing fats. What is the primary function of fats?
A. Build muscle
B. Provide energy, insulate, and protect organs
C. Transport oxygen
D. Digest protein
Correct Answer: B
Rationale: Fats provide energy, insulate the body, protect organs, and aid in absorbing fat-soluble
vitamins. [100% CORRECT]
Q6: Macronutrients – Fats
The student is reviewing fats. How many calories per gram do fats provide?
A. 2
B. 4
C. 7
D. 9
Correct Answer: D
Rationale: Fats provide 9 calories per gram, the most energy-dense macronutrient. [100% CORRECT]
Q7: Macronutrients – Essential Amino Acids
The student is reviewing amino acids. How many essential amino acids are there?
A. 5
B. 9
C. 11
D. 20
Correct Answer: B
Rationale: There are 9 essential amino acids that the body cannot synthesize and must be obtained
from the diet. [100% CORRECT]
Q8: Macronutrients – Complete Proteins
The student is reviewing protein quality. What is a complete protein?
A. A protein that contains all essential amino acids
B. A protein from plants
, 3
C. A protein with no fat
D. A protein with no carbohydrates
Correct Answer: A
Rationale: A complete protein contains all 9 essential amino acids in adequate amounts. Animal
proteins are typically complete; most plant proteins are incomplete. [100% CORRECT]
Q9: Macronutrients – Fiber
The student is reviewing fiber. What is the recommended daily fiber intake for adults?
A. 10–15 g
B. 25–38 g
C. 40–50 g
D. 50–60 g
Correct Answer: B
Rationale: The recommended daily fiber intake is 25–38 grams for adults, depending on age and sex.
[100% CORRECT]
Q10: Macronutrients – Fiber Types
The student is reviewing fiber types. What is soluble fiber?
A. Fiber that dissolves in water and forms a gel
B. Fiber that does not dissolve in water
C. Fiber found only in animal products
D. Fiber that is digested completely
Correct Answer: A
Rationale: Soluble fiber dissolves in water to form a gel-like substance, helping lower cholesterol
and blood sugar. Insoluble fiber adds bulk to stool. [100% CORRECT]
Q11: Macronutrients – Fiber Types
The student is reviewing fiber types. What is insoluble fiber?
A. Fiber that dissolves in water
B. Fiber that does not dissolve in water and adds bulk to stool
C. Fiber found only in fruits
D. Fiber that is digested completely
Correct Answer: B
Rationale: Insoluble fiber does not dissolve in water, adds bulk to stool, and helps prevent
constipation. [100% CORRECT]
Q12: Macronutrients – Glycemic Index
The student is reviewing glycemic index. What is glycemic index?
A. A measure of how quickly a food raises blood glucose
B. A measure of protein quality
