Nutrition and Health Practice Questions

Q: What types of growth charts are used by Anganwadi workers (ICDS) for growth monitoring?

MGRS. **Explanation:** The correct answer is **MGRS (Multicentre Growth Reference Study)**. In 2006, the World Health Organization (WHO) released the New International Growth Standards based on the MGRS. These standards are unique because they describe **"how children should grow"** under optimal environmental and feeding conditions (breastfeeding), rather than just describing how they grew in a specific time or place. Since 2007, the Government of India, under the **Integrated Child Health Services (ICDS)**, adopted these WHO Child Growth Standards for monitoring children at Anganwadi centers. **Analysis of Options:** * **NCHS (National Center for Health Statistics):** These were the older international standards used prior to 2006. They were based on a formulaic approach using formula-fed Caucasian children in the US, which did not accurately represent global growth patterns. * **IAP (Indian Academy of Pediatrics):** While IAP provides growth charts specifically tailored for Indian children (often used by private pediatricians), the ICDS program strictly follows the WHO-MGRS standards to maintain global and national uniformity. * **CDC (Centers for Disease Control):** These are specific to the United States population and are not used for public health monitoring in India. **High-Yield Facts for NEET-PG:** * **MGRS Parameters:** It includes 6 sites (Brazil, Ghana, India, Norway, Oman, and USA). The Indian site was **South Delhi**. * **Growth Chart Colors:** Anganwadi workers use color-coded charts: **Green** (Normal), **Yellow** (Moderately Underweight/MAM), and **Orange** (Severely Underweight/SAM). * **Primary Indicator:** For routine monitoring in ICDS, **Weight-for-Age** is the primary indicator used on the growth cards.

Q: What is the estimated daily energy requirement (in kcal/day) for a female engaged in heavy manual labor?

2850. ### Explanation The energy requirement of an individual is determined by their age, sex, body weight, and level of physical activity. According to the **ICMR-NIN (2020) guidelines**, energy requirements for adults are categorized based on physical activity levels: Sedentary, Moderate, and Heavy. **1. Why Option C (2850) is Correct:** For an adult female (ideal body weight of 55 kg) engaged in **heavy work** (e.g., construction workers, manual laborers), the Recommended Dietary Allowance (RDA) for energy is **2850 kcal/day**. This higher caloric intake is necessary to compensate for the high Total Energy Expenditure (TEE) associated with strenuous physical exertion. **2. Analysis of Incorrect Options:** * **Option A (1900 kcal/day):** This is the RDA for an adult female engaged in **sedentary work** (e.g., office workers, teachers). * **Option B (2230 kcal/day):** This is the RDA for an adult female engaged in **moderate work** (e.g., domestic help, weavers). * **Option D (3730 kcal/day):** This value corresponds to the energy requirement for an **adult male** engaged in **heavy work** (males have higher basal metabolic rates and muscle mass). **3. High-Yield Clinical Pearls for NEET-PG:** * **Reference Body Weight (ICMR 2020):** Adult Male = 65 kg; Adult Female = 55 kg. * **Pregnancy:** Add **+350 kcal/day** (2nd trimester) and **+400 kcal/day** (3rd trimester) to the basic requirement. * **Lactation:** Add **+600 kcal/day** (0–6 months) and **+520 kcal/day** (6–12 months). * **Male Energy Requirements:** Sedentary (2110 kcal), Moderate (2710 kcal), Heavy (3480 kcal). *Note: Older 2010 guidelines cited 3800 kcal for heavy work, but 2020 updates revised these values.*

Q: Which cooking oil has the most polyunsaturated fatty acids (PUFA)?

Safflower oil. **Explanation:** The core concept tested here is the classification of dietary fats based on their saturation levels. **Safflower oil** is the correct answer because it contains the highest concentration of Polyunsaturated Fatty Acids (PUFA), specifically Linoleic acid (Omega-6), among common cooking oils. It typically contains approximately **73–75% PUFA**, making it a potent agent for lowering serum cholesterol levels. **Analysis of Options:** * **Safflower oil (Correct):** Highest PUFA content (~75%). It is often the "gold standard" in exams for high PUFA content, followed closely by Sunflower and Soya bean oils. * **Coconut oil:** This is a **Saturated Fatty Acid (SFA)** powerhouse (approx. 90% SFA). It contains very little PUFA (approx. 2%) and is unique due to its high Medium Chain Triglyceride (MCT) content. * **Butter:** An animal fat predominantly composed of **Saturated Fatty Acids** and cholesterol. It contains minimal PUFA. * **Vanaspati:** This is vegetable oil that has undergone **hydrogenation**. It is high in Saturated Fats and, more importantly, **Trans-fatty acids**, which are atherogenic. **High-Yield NEET-PG Pearls:** 1. **PUFA Hierarchy:** Safflower (75%) > Sunflower (60%) > Soya bean (55%) > Corn oil (50%). 2. **P/S Ratio:** The recommended Polyunsaturated to Saturated fat ratio in a balanced diet is **0.8 to 1.0**. 3. **Essential Fatty Acids:** Linoleic acid (n-6) and Alpha-linolenic acid (n-3) cannot be synthesized by the body and must be obtained from oils like Safflower or Mustard oil. 4. **Clinical Note:** While high PUFA oils lower LDL (bad cholesterol), excessive intake can also lower HDL (good cholesterol). Therefore, a blend of oils is often recommended.

Q: What is an important point for a prudent diet?

Dietary fat should be limited to 20-30% of total intake. ### Explanation A **Prudent Diet** refers to a balanced dietary pattern designed to reduce the risk of non-communicable diseases (NCDs) like obesity, hypertension, and cardiovascular diseases. **1. Why Option B is Correct:** According to WHO and nutritional guidelines for a prudent diet, total dietary fat should be restricted to **20–30% of the total energy intake**. This range ensures sufficient intake of essential fatty acids while preventing excessive caloric density that leads to metabolic syndrome. **2. Analysis of Incorrect Options:** * **Option A:** In a prudent diet, it is **Saturated Fats** that should be limited to less than 10% of total energy intake. Unsaturated fats (MUFAs and PUFAs) are actually encouraged as substitutes for saturated fats to improve lipid profiles. * **Option C:** A prudent diet emphasizes the **increase** of complex carbohydrates (like whole grains, legumes, and fiber) and the **avoidance of refined/simple sugars** (which should be <10% of total energy). * **Option D:** Proteins should typically account for **10–15%** of the total daily energy intake. A diet where proteins account for 50–60% is physiologically unsustainable and potentially harmful to renal function. **3. High-Yield Clinical Pearls for NEET-PG:** * **Salt Intake:** Should be limited to less than **5g per day** to prevent hypertension. * **Dietary Fiber:** Recommended intake is **~40g/2000 kcal**. * **Cholesterol:** Dietary cholesterol should be restricted to below **300 mg/day**. * **PUFA/SFA Ratio:** The ideal ratio in a balanced diet should be between **0.8 and 1.0**. * **Free Sugars:** Should ideally be less than **5%** of total energy for additional health benefits.

Q: Which of the following is considered a primary source of iron for economically disadvantaged populations?

Jaggery. **Explanation:** **Why Jaggery is the Correct Answer:** In the context of public health and community medicine, Jaggery (unrefined sugar) is a vital source of non-heme iron for economically disadvantaged populations. It contains approximately **11 mg of iron per 100g**. Its significance lies in its **affordability, cultural acceptance, and accessibility** compared to expensive animal-based heme iron sources. In India, it is frequently recommended in nutritional programs to combat Iron Deficiency Anemia (IDA) among pregnant women and children in rural settings. **Analysis of Incorrect Options:** * **Soybeans:** While soybeans are rich in protein and contain iron, they also contain high levels of **phytates**, which significantly inhibit iron absorption. They are not the primary "go-to" source for iron supplementation in low-SES groups compared to jaggery. * **Oranges:** Oranges are a source of Vitamin C (Ascorbic acid). While they do not provide iron themselves, they are crucial for **enhancing the absorption** of non-heme iron when consumed with meals. * **Almonds:** Almonds are nutrient-dense but are **prohibitively expensive** for economically disadvantaged populations, making them an impractical primary source for public health interventions. **High-Yield NEET-PG Pearls:** * **Enhancers of Iron Absorption:** Vitamin C (Ascorbic acid), meat protein, and gastric acid. * **Inhibitors of Iron Absorption:** Phytates (cereals), Oxalates (spinach), Tannins (tea), Calcium, and Phosphates. * **National Iron Plus Initiative (NIPI):** Remember the dosage for "WIFS" (Weekly Iron Folic Acid Supplementation)—100 mg elemental iron and 500 µg folic acid for adolescents. * **Best Source:** While liver is the richest source of iron, Jaggery is the most "cost-effective" source for the masses.

Q: At what age is Vitamin A supplementation recommended?

9 months. **Explanation:** **1. Why 9 Months is Correct:** Under the National Immunization Schedule (NIS) in India, Vitamin A supplementation begins at **9 completed months**, administered along with the **Measles/MR vaccine**. This timing is strategic because maternal antibodies against Measles begin to wane around this age, increasing the risk of infection. Measles is a major cause of Vitamin A depletion, which can lead to xerophthalmia and increased childhood mortality. The first dose is **1 lakh IU (1 ml)**, given orally. **2. Why Other Options are Incorrect:** * **A. 2 months:** At this age, infants are typically breastfed. Exclusive breastfeeding provides sufficient Vitamin A for the first six months of life. Supplementation is not indicated this early. * **C. 5-6 years:** While Vitamin A prophylaxis continues until age 5, it does not *start* here. The program includes a total of 9 doses: the first at 9 months, the second at 18 months (2 lakh IU), and subsequent doses every 6 months until the child reaches 5 years of age. **3. High-Yield Clinical Pearls for NEET-PG:** * **Total Doses:** A child receives a total of **9 doses** (17 lakh IU total) by age 5. * **Dosage:** 1st dose = 1 lakh IU; 2nd to 9th doses = 2 lakh IU each. * **Target Group:** The Vitamin A Prophylaxis Programme targets children aged 9–59 months. * **Therapeutic Dose:** If a child presents with active Xerophthalmia (e.g., Bitot’s spots), the treatment schedule is: **Day 0, Day 1, and Day 14** (2 lakh IU per dose for children >1 year). * **Public Health Impact:** Vitamin A supplementation can reduce all-cause child mortality by up to 23-24% in deficient areas.

Q: Which of the following is considered the first immunization for a newborn?

Colostrum. **Explanation:** **Colostrum** is the correct answer because it is biologically referred to as the **"first immunization"** of the newborn. It is the thick, yellowish milk secreted by the mammary glands during the first 2–3 days after delivery. It is exceptionally rich in **Secretory IgA (Immunoglobulin A)**, which coats the infant's intestinal mucosa, providing passive immunity and protecting against enteric and respiratory pathogens. It also contains high concentrations of lactoferrin, lysozymes, and macrophages. **Analysis of Incorrect Options:** * **Option B (Handing over the baby):** While essential for "Skin-to-Skin" contact (Kangaroo Mother Care) and bonding, it does not provide immunological protection. * **Option C (OPV):** Though the "Zero Dose" of OPV is given at birth, it is an artificial active immunization. Colostrum is considered the natural, primary immunological shield. * **Option D (DPT + BCG):** BCG is given at birth, but DPT is never given at birth (it starts at 6 weeks). Neither constitutes the "first" protection compared to the immediate availability of colostrum. **High-Yield NEET-PG Pearls:** * **Immunoglobulin Profile:** Colostrum is richest in **IgA**. In contrast, the immunoglobulin that crosses the placenta is **IgG**. * **Nutritional Value:** Compared to mature milk, colostrum has more protein, vitamins (A, D, E, K), and minerals, but **less fat and lactose**. * **Purgative Action:** Colostrum helps in the passage of **meconium**, preventing early neonatal jaundice. * **WHO Recommendation:** Exclusive breastfeeding should be initiated within **one hour** of birth.

Q: Cereal protein is deficient in which amino acid?

Lysine. **Explanation:** The nutritional quality of a protein is determined by its **limiting amino acid**, which is the essential amino acid present in the smallest amount relative to human requirements. **1. Why Lysine is Correct:** Cereals (such as wheat, rice, and maize) are the primary source of energy in the Indian diet. However, they are universally **deficient in Lysine**. Conversely, cereals are relatively rich in methionine and cysteine (sulfur-containing amino acids). To achieve a "complete protein" profile, cereals are traditionally consumed with pulses (dal), which are rich in lysine but deficient in methionine. This is known as the **supplementary action of proteins**. **2. Analysis of Incorrect Options:** * **Leucine (A):** Most cereals contain adequate leucine. Notably, **Maize (Corn)** and **Jowar (Sorghum)** contain high levels of leucine. An excess of leucine can interfere with tryptophan metabolism, leading to Pellagra. * **Phenylalanine (C):** This is an essential amino acid generally found in sufficient quantities in most cereal grains. * **Tryptophan (D):** While most cereals have adequate tryptophan, **Maize** is uniquely deficient in both **Lysine and Tryptophan**. However, for the general category of "cereals," Lysine remains the primary deficiency. **3. High-Yield Clinical Pearls for NEET-PG:** * **Limiting Amino Acid in Pulses:** Methionine. * **Limiting Amino Acid in Cereals:** Lysine. * **The "Maize-Pellagra" Connection:** Maize is deficient in Tryptophan (a precursor to Niacin) and high in Leucine (which inhibits Niacin synthesis), leading to Niacin deficiency (Pellagra). * **Reference Protein:** Egg protein is considered the "standard" or reference protein (Biological Value = 100) because it contains all essential amino acids in the right proportions.

Q: Which amino acid is deficient in maize?

Tryptophan. **Explanation:** The nutritional quality of a cereal is determined by its limiting amino acids. **Maize (corn)** is notoriously deficient in two essential amino acids: **Tryptophan** and **Lysine**. 1. **Why Tryptophan is the correct answer:** Tryptophan is the precursor for the synthesis of Niacin (Vitamin B3). In populations where maize is the staple diet, the lack of dietary tryptophan leads to a secondary deficiency of Niacin. This clinically manifests as **Pellagra**, characterized by the "4 Ds": Dermatitis (Casal’s necklace), Diarrhea, Dementia, and Death. 2. **Why the other options are incorrect:** * **Threonine:** This is generally not a limiting amino acid in major cereals like maize or wheat. * **Methionine:** This is a sulfur-containing amino acid. While pulses (legumes) are deficient in Methionine, cereals are actually **rich in Methionine**. This is the basis for "Pulse-Cereal supplementation" to achieve a balanced protein profile. * **Leucine:** Maize actually contains **high levels of Leucine**. High leucine levels interfere with the conversion of tryptophan to niacin, further exacerbating the risk of Pellagra in maize eaters. **High-Yield Clinical Pearls for NEET-PG:** * **Limiting Amino Acids:** * Cereals (Rice, Wheat, Maize): Deficient in **Lysine**. * Pulses: Deficient in **Methionine**. * Maize (Specific): Deficient in **Tryptophan AND Lysine**. * **Pellagra Association:** Always associate a "Maize-based diet" with Tryptophan deficiency and Pellagra. * **Fortification:** To improve the biological value of maize, it is often fortified with lysine and tryptophan (e.g., Quality Protein Maize).

Question 1

Which of the following is NOT considered one of the three cardinal determinants of undernutrition?

Accepted Answer

Inadequate water intake

Answer

Low birth weight

Answer

Infections

Answer

Low food intake

Question 2

What types of growth charts are used by Anganwadi workers (ICDS) for growth monitoring?

Accepted Answer

MGRS

Answer

NCHS

Answer

IAP

Answer

CDC

Question 3

What is the estimated daily energy requirement (in kcal/day) for a female engaged in heavy manual labor?

Accepted Answer

2850

Answer

1900

Answer

2230

Answer

3730

Question 4

Which cooking oil has the most polyunsaturated fatty acids (PUFA)?

Accepted Answer

Safflower oil

Answer

Coconut oil

Answer

Butter

Answer

Vanaspati

Question 5

What is an important point for a prudent diet?

Accepted Answer

Dietary fat should be limited to 20-30% of total intake

Answer

Unsaturated fats should be less than 10%

Answer

Avoidance of complex carbohydrates

Answer

Proteins should account for 50-60% of diet

Question 6

Which of the following is considered a primary source of iron for economically disadvantaged populations?

Accepted Answer

Jaggery

Answer

Soybeans

Answer

Oranges

Answer

Almonds

Question 7

At what age is Vitamin A supplementation recommended?

Accepted Answer

9 months

Answer

2 months

Answer

5-6 years

Answer

None of the above

Question 8

Which of the following is considered the first immunization for a newborn?

Accepted Answer

Colostrum

Answer

Handing over the baby to the mother

Answer

Oral Polio Vaccine (OPV)

Answer

DPT + BCG vaccine

Question 9

Cereal protein is deficient in which amino acid?

Accepted Answer

Lysine

Answer

Leucine

Answer

Phenylalanine

Answer

Tryptophan

Question 10

Which amino acid is deficient in maize?

Accepted Answer

Tryptophan

Answer

Threonine

Answer

Methionine

Answer

Leucine

Nutrition and Health — MCQs

Nutrition and Health — MCQs

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