Q. 1
Dietetics
Difficulty: Easy
(1 Mark)
What is the recommended daily supplemental dose of Folic Acid for women of childbearing age prior to conception to prevent Neural Tube Defects (spina bifida)?
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Step-by-Step Explanation & Concept Rationale
WHO and CDC recommend that all women capable of becoming pregnant consume 400 mcg (0.4 mg) of synthetic folic acid daily starting at least 1 month prior to conception through the first trimester.
Q. 2
Dietetics
Difficulty: Medium
(1 Mark)
What are the approximate additional daily energy requirements during the second and third trimesters of pregnancy, respectively?
💡
Step-by-Step Explanation & Concept Rationale
Institute of Medicine (IOM) guidelines indicate zero extra calories in the 1st trimester, +340 kcal/day in the 2nd trimester, and +452 kcal/day in the 3rd trimester for a singleton pregnancy.
Q. 3
Dietetics
Difficulty: Easy
(1 Mark)
According to the World Health Organization (WHO), what is the optimal duration for exclusive breastfeeding of infants?
💡
Step-by-Step Explanation & Concept Rationale
WHO recommends exclusive breastfeeding for the first 6 months of life (no other foods or liquids, not even water), followed by continued breastfeeding up to 2 years or beyond with nutritionally adequate complementary foods.
Q. 4
Dietetics
Difficulty: Easy
(1 Mark)
Human colostrum (the initial milk secreted during the first 2-3 days postpartum) is uniquely characterized by high concentrations of:
💡
Step-by-Step Explanation & Concept Rationale
Colostrum is rich in immunological factors—especially secretory IgA, lactoferrin, lysozymes, and leukocytes—providing critical passive mucosal immunity against gastrointestinal and respiratory pathogens.
Q. 5
Dietetics
Difficulty: Medium
(1 Mark)
Why should unmodified whole cow's milk NOT be introduced into an infant's diet before 12 months of age?
💡
Step-by-Step Explanation & Concept Rationale
Cow's milk contains excessive protein and minerals (high renal solute load), low bioavailable iron, and can induce occult microscopic GI bleeding in infants younger than 1 year.
Q. 6
Dietetics
Difficulty: Easy
(1 Mark)
During the adolescent growth spurt, requirement for which two micronutrients increases dramatically due to skeletal elongation and blood volume expansion?
💡
Step-by-Step Explanation & Concept Rationale
Adolescence involves rapid bone mass accretion (demanding high calcium: 1300 mg/day) and blood volume expansion/menarche (demanding increased iron for hemoglobin synthesis).
Q. 7
Dietetics
Difficulty: Medium
(1 Mark)
In elderly populations, age-related atrophic gastritis with decreased hydrochloric acid and intrinsic factor secretion leads to malabsorption of:
💡
Step-by-Step Explanation & Concept Rationale
Achlorhydria prevents the cleavage of Vitamin B12 from dietary protein, and diminished intrinsic factor impairs terminal ileal absorption, resulting in Vitamin B12 deficiency in older adults.
Q. 8
Dietetics
Difficulty: Medium
(1 Mark)
What is the recommended protein intake for healthy older adults (>= 65 years) to preserve muscle mass and combat sarcopenia?
💡
Step-by-Step Explanation & Concept Rationale
Due to anabolic resistance, PROT-AGE guidelines recommend 1.0-1.2 g/kg/day for healthy older adults (higher than the adult RDA of 0.8 g/kg) to maintain muscle mass and functional mobility.
Q. 9
Dietetics
Difficulty: Easy
(1 Mark)
What is the primary danger of introducing complementary solid foods to an infant earlier than 4 months of age?
💡
Step-by-Step Explanation & Concept Rationale
Before 4-6 months, infants retain the tongue-thrust (extrusion) reflex, cannot sit upright, have immature gut mucosal barriers, and possess low amylase activity, increasing allergy and aspiration risks.
Q. 10
Dietetics
Difficulty: Easy
(1 Mark)
What is the estimated additional energy cost per day for a fully lactating woman during the first 6 months postpartum?
💡
Step-by-Step Explanation & Concept Rationale
Producing ~750 mL of breast milk daily expends ~650 kcal; IOM guidelines recommend an additional dietary intake of +330 to +500 kcal/day, with the balance drawn from gestational fat stores.
Q. 11
Dietetics
Difficulty: Medium
(1 Mark)
In geriatric dysphagia management, which standardized global initiative categorizes food textures and drink thicknesses from Level 0 to Level 7?
💡
Step-by-Step Explanation & Concept Rationale
IDDSI provides standardized terminology and definitions from Level 0 (Thin drinks) to Level 7 (Regular foods) to ensure safety in swallowing disorders.
Q. 12
Dietetics
Difficulty: Medium
(1 Mark)
A woman with a pre-pregnancy normal BMI (18.5 - 24.9 kg/m2) has an optimal recommended total gestational weight gain of:
💡
Step-by-Step Explanation & Concept Rationale
IOM guidelines recommend total weight gain of 11.5-16.0 kg (25-35 lbs) for normal BMI women, 12.5-18 kg for underweight, 7-11.5 kg for overweight, and 5-9 kg for obese mothers.
Q. 13
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
Night blindness and xerophthalmia are clinical manifestations of the deficiency of which fat-soluble vitamin?
💡
Step-by-Step Explanation & Concept Rationale
Vitamin A is necessary for the synthesis of rhodopsin in retinal rods; its deficiency causes nyctalopia (night blindness) and dry conjunctiva.
Q. 14
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #7: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 15
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #11: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 16
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #15: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 17
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #19: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 18
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #23: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 19
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #27: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 20
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #31: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 21
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #35: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 22
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #39: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 23
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #43: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 24
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
In nutritional biochemistry #47: What is the primary storage polysaccharide of glucose in the human liver and skeletal muscle?
💡
Step-by-Step Explanation & Concept Rationale
Glycogen is a branched polymer of glucose serving as the primary short-term energy reserve in animals.
Q. 25
Nutrition & Dietetics
Difficulty: EASY
(1 Mark)
What dietary modification is recommended as the primary nutritional therapy for celiac disease?
💡
Step-by-Step Explanation & Concept Rationale
Celiac disease is an autoimmune enteropathy triggered by gluten (found in wheat, barley, and rye); strict gluten exclusion is required.
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