TEXAS DIETITIAN LICENSING EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALES 2026 Q&A | INSTANT
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1. The primary purpose of medical nutrition therapy (MNT) is to:
A. Promote general wellness
B. Manage and treat specific diseases
C. Replace pharmacologic therapy
D. Prevent nutrient deficiencies
Rationale: MNT is designed to treat or manage specific medical
conditions through individualized nutrition interventions.
2. Which of the following is a disaccharide?
A. Glucose
B. Fructose
C. Sucrose
D. Galactose
Rationale: Sucrose is composed of glucose and fructose, making it a
disaccharide.
3. The primary site for nutrient absorption in the body is the:
,A. Stomach
B. Small intestine
C. Large intestine
D. Liver
Rationale: The small intestine, especially the jejunum, is responsible
for most nutrient absorption.
4. The major storage form of carbohydrate in humans is:
A. Glucose
B. Lactose
C. Glycogen
D. Starch
Rationale: Glycogen is the stored form of glucose in muscle and liver
tissues.
5. Which fatty acid is essential in the human diet?
A. Stearic acid
B. Palmitic acid
C. Linoleic acid
D. Oleic acid
Rationale: Linoleic acid (omega-6) and alpha-linolenic acid (omega-3)
are essential because the body cannot synthesize them.
6. A vegan diet excludes all of the following except:
,A. Eggs
B. Milk
C. Cheese
D. Lentils
Rationale: Lentils are plant-based and allowed on a vegan diet.
7. The Recommended Dietary Allowance (RDA) represents:
A. Minimum daily intake
B. Average requirement for half the population
C. Daily intake sufficient for nearly all healthy individuals
D. Upper safe limit
Rationale: The RDA is set to meet the needs of 97–98% of healthy
individuals.
8. In a patient with renal failure, protein intake should typically be:
A. Unrestricted
B. Controlled based on disease stage
C. Eliminated entirely
D. Doubled
Rationale: Protein must be adjusted depending on kidney function and
dialysis status to prevent accumulation of nitrogenous waste.
9. A BMI of 32 kg/m² is classified as:
A. Normal weight
B. Overweight
, C. Obese (Class I)
D. Obese (Class II)
Rationale: A BMI between 30.0 and 34.9 is Class I obesity.
10. Which vitamin deficiency is associated with megaloblastic anemia?
A. Vitamin C
B. Vitamin B12
C. Vitamin K
D. Vitamin D
Rationale: Vitamin B12 deficiency leads to megaloblastic (macrocytic)
anemia due to impaired DNA synthesis.
11. A client taking warfarin should avoid excessive intake of:
A. Vitamin C
B. Vitamin K
C. Vitamin D
D. Vitamin B6
Rationale: Vitamin K promotes clotting and can interfere with the
anticoagulant effect of warfarin.
12. Which lab test best reflects long-term glucose control?
A. Fasting glucose
B. Hemoglobin A1c
C. Random glucose
D. Insulin level
AND CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF
1. The primary purpose of medical nutrition therapy (MNT) is to:
A. Promote general wellness
B. Manage and treat specific diseases
C. Replace pharmacologic therapy
D. Prevent nutrient deficiencies
Rationale: MNT is designed to treat or manage specific medical
conditions through individualized nutrition interventions.
2. Which of the following is a disaccharide?
A. Glucose
B. Fructose
C. Sucrose
D. Galactose
Rationale: Sucrose is composed of glucose and fructose, making it a
disaccharide.
3. The primary site for nutrient absorption in the body is the:
,A. Stomach
B. Small intestine
C. Large intestine
D. Liver
Rationale: The small intestine, especially the jejunum, is responsible
for most nutrient absorption.
4. The major storage form of carbohydrate in humans is:
A. Glucose
B. Lactose
C. Glycogen
D. Starch
Rationale: Glycogen is the stored form of glucose in muscle and liver
tissues.
5. Which fatty acid is essential in the human diet?
A. Stearic acid
B. Palmitic acid
C. Linoleic acid
D. Oleic acid
Rationale: Linoleic acid (omega-6) and alpha-linolenic acid (omega-3)
are essential because the body cannot synthesize them.
6. A vegan diet excludes all of the following except:
,A. Eggs
B. Milk
C. Cheese
D. Lentils
Rationale: Lentils are plant-based and allowed on a vegan diet.
7. The Recommended Dietary Allowance (RDA) represents:
A. Minimum daily intake
B. Average requirement for half the population
C. Daily intake sufficient for nearly all healthy individuals
D. Upper safe limit
Rationale: The RDA is set to meet the needs of 97–98% of healthy
individuals.
8. In a patient with renal failure, protein intake should typically be:
A. Unrestricted
B. Controlled based on disease stage
C. Eliminated entirely
D. Doubled
Rationale: Protein must be adjusted depending on kidney function and
dialysis status to prevent accumulation of nitrogenous waste.
9. A BMI of 32 kg/m² is classified as:
A. Normal weight
B. Overweight
, C. Obese (Class I)
D. Obese (Class II)
Rationale: A BMI between 30.0 and 34.9 is Class I obesity.
10. Which vitamin deficiency is associated with megaloblastic anemia?
A. Vitamin C
B. Vitamin B12
C. Vitamin K
D. Vitamin D
Rationale: Vitamin B12 deficiency leads to megaloblastic (macrocytic)
anemia due to impaired DNA synthesis.
11. A client taking warfarin should avoid excessive intake of:
A. Vitamin C
B. Vitamin K
C. Vitamin D
D. Vitamin B6
Rationale: Vitamin K promotes clotting and can interfere with the
anticoagulant effect of warfarin.
12. Which lab test best reflects long-term glucose control?
A. Fasting glucose
B. Hemoglobin A1c
C. Random glucose
D. Insulin level
