Nutrition and Health Practice Questions

Q: Lowering of which of the following parameters indicates acute malnutrition?

Weight for height. **Explanation:** In pediatric nutritional assessment, different anthropometric indices reflect different durations and types of nutritional stress. **1. Why "Weight for Height" is correct:** **Weight for height** is the primary indicator of **acute malnutrition** (also known as **Wasting**). Weight is a sensitive parameter that fluctuates rapidly in response to recent nutritional deficiencies or acute illnesses (like diarrhea or respiratory infections). When a child’s weight is low relative to their height, it signifies a recent and severe process of weight loss, indicating an acute nutritional emergency. **2. Analysis of Incorrect Options:** * **Weight for Age (Underweight):** This is a composite indicator that reflects both acute and chronic malnutrition. It does not distinguish between a child who is short (stunted) and a child who is thin (wasted). * **Height for Age (Stunting):** This indicates **chronic malnutrition**. Linear growth retardation occurs over a long period due to persistent nutritional deprivation or recurrent infections. It represents "past" or long-term nutritional status. * **Body Mass Index (BMI):** While used in adults and older children, in the context of standard WHO pediatric growth monitoring for acute malnutrition, "Weight for Height" is the specific gold-standard parameter used to define wasting. **Clinical Pearls for NEET-PG:** * **Wasting (Acute):** Weight for Height < -2 SD. * **Stunting (Chronic):** Height for Age < -2 SD. * **Underweight (Composite):** Weight for Age < -2 SD. * **Mid-Upper Arm Circumference (MUAC):** A MUAC < 11.5 cm is a quick screening tool for Severe Acute Malnutrition (SAM) in children aged 6–59 months. * **Gomez Classification:** Based on Weight for Age. * **Waterlow’s Classification:** Uses Weight for Height (Wasting) and Height for Age (Stunting).

Q: Vitamin A deficiency is considered a public health problem if the prevalence rate of night blindness in children between 6 months and 6 years is more than?

1.00%. **Explanation:** Vitamin A deficiency (VAD) is a major cause of preventable childhood blindness. The World Health Organization (WHO) has established specific prevalence thresholds to determine when VAD constitutes a significant public health problem within a community. **1. Why 1.00% is Correct:** According to WHO criteria, **Night Blindness (XN)** in children aged 6 months to 6 years is considered a public health problem if the prevalence exceeds **1.0%**. Night blindness is the earliest clinical manifestation of xerophthalmia and serves as a sensitive community indicator for Vitamin A status. **2. Analysis of Incorrect Options:** * **0.01% (Option A):** This value is too low to signify a community-wide public health crisis for clinical symptoms. * **0.05% (Option B):** This is the threshold for **Bitot’s Spots (X1B)**. If Bitot’s spots exceed 0.5% (not 0.05%), it is considered a public health problem. * **0.10% (Option C):** This is the threshold for **Corneal Xerosis/Ulceration/Keratomalacia (X2/X3A/X3B)**. Because these represent advanced, permanent damage, even a small prevalence (0.01% for corneal scars) is significant. **3. High-Yield Clinical Pearls for NEET-PG:** To master VAD questions, remember these WHO "Public Health Problem" thresholds for children (6m–6y): * **Night Blindness (XN):** > 1.0% * **Bitot’s Spots (X1B):** > 0.5% * **Corneal Xerosis/Keratomalacia (X2/X3):** > 0.01% * **Corneal Scars (XS):** > 0.05% * **Serum Retinol ( 20% (Biochemical indicator) **Prophylaxis Schedule:** Under the National Vitamin A Prophylaxis Program, the 1st dose (1 lakh IU) is given at 9 months (with Measles/MR vaccine), followed by 2 lakh IU every 6 months until age 5 (Total 9 doses/17 lakh IU).

Q: Which of the following grains provides the best quality proteins in the highest quantities?

Rice. **Explanation:** The question asks for the grain providing the **best quality** protein in the **highest quantity**. This requires a balance between protein concentration and biological value. **Why Rice is Correct:** While rice has the lowest total protein content (approx. 7%) among cereals, it contains the **highest quality protein**. This is because rice protein is rich in **Lysine**, the limiting amino acid in most other cereals. It has a high **Biological Value (BV)** of approximately 80 and a high **Net Protein Utilization (NPU)**. In the context of "best quality in highest quantities" relative to its own composition, rice protein is more efficiently utilized by the body than wheat or millets. **Analysis of Incorrect Options:** * **Wheat:** Contains more protein (approx. 11-12%) than rice, but the quality is lower. It is deficient in Lysine and contains gluten, which can be an allergen (Celiac disease). Its NPU is lower than rice. * **Ragi (Finger Millet):** Known for being the richest source of **Calcium** (344 mg/100g) rather than protein. Its protein content is about 7%, similar to rice, but with a lower biological profile. * **Bajra (Pearl Millet):** Contains a decent amount of protein (approx. 11%) and is a rich source of **Iron**, but the protein quality (amino acid score) does not surpass that of rice. **High-Yield Facts for NEET-PG:** * **Limiting Amino Acid:** In most cereals (Rice, Wheat, Maize), it is **Lysine**. In pulses, it is **Methionine**. * **Reference Protein:** Egg is considered the reference protein (BV = 100). * **Maize & Pellagra:** Maize is deficient in Tryptophan; a diet solely based on maize leads to Pellagra (Niacin deficiency) because Tryptophan is a precursor to Niacin. * **Pulse-Cereal Mix:** To achieve an ideal amino acid profile, a cereal-to-pulse ratio of **4:1** is recommended.

Q: What is the recommended daily dietary calcium intake for pregnant and lactating mothers in mg?

1000 mg. **Explanation:** The correct answer is **1000 mg**. This recommendation is based on the **ICMR-NIN (2020) Dietary Guidelines** for Indians. **1. Why 1000 mg is correct:** During pregnancy, calcium is essential for the skeletal development of the fetus, especially during the third trimester when bone mineralization peaks. During lactation, the mother loses significant calcium through breast milk (approx. 200–300 mg/day). To prevent maternal bone demineralization and ensure adequate fetal/infant growth, the Recommended Dietary Allowance (RDA) for both pregnant and lactating women is set at **1000 mg/day**. **2. Analysis of Incorrect Options:** * **400 mg:** This is significantly below the requirement for any adult group and would lead to a negative calcium balance. * **600 mg:** This was the previous RDA for a non-pregnant, non-lactating (NPNL) adult woman. Under the 2020 guidelines, the RDA for a normal adult (sedentary) is now **1000 mg**. * **800 mg:** This does not correspond to the current ICMR standards for maternal health. **3. High-Yield Clinical Pearls for NEET-PG:** * **ICMR 2020 Update:** The RDA for calcium has been standardized to **1000 mg/day** for most adult groups, including NPNL women, pregnant women, and lactating mothers. * **Post-menopausal Women:** Their requirement is higher (**1200 mg/day**) to prevent osteoporosis. * **Calcium to Phosphorus Ratio:** The ideal dietary ratio should be maintained at **1:1** (except in infancy where it is 1:1.5). * **Absorption:** Vitamin D is essential for calcium absorption; phytates and oxalates (found in some greens/cereals) inhibit it.

Q: Xerophthalmia is considered a problem in a community if:

Night blindness >1%. **Explanation:** Vitamin A deficiency (VAD) is a major public health concern in developing nations. To determine if Xerophthalmia constitutes a "public health problem" in a community, the World Health Organization (WHO) has established specific prevalence criteria for children aged 6 months to 6 years. **Why Option A is Correct:** Night blindness (X1N) is the earliest clinical symptom of Vitamin A deficiency. According to WHO criteria, if the prevalence of night blindness in a community exceeds **1%**, it is considered a significant public health problem. This threshold is a high-yield fact for NEET-PG as it represents the primary screening indicator. **Analysis of Incorrect Options:** * **B. Bitot spots >1%:** This is incorrect because the WHO threshold for Bitot spots (X1B) is actually **>0.5%**. * **C. Corneal ulceration >0.05%:** This is incorrect because the threshold for active corneal lesions (X2, X3A, X3B) is **>0.01%**. * **D. Corneal scarring >0.5%:** This is incorrect because the threshold for Xerophthalmia-related corneal scars (XS) is **>0.05%**. **High-Yield Clinical Pearls for NEET-PG:** * **WHO Classification (Xerophthalmia):** * X1N: Night blindness * X1B: Bitot’s spots * X2: Conjunctival xerosis * X3A: Corneal xerosis * X3B: Keratomalacia (involving >1/3rd of the cornea) * XS: Corneal scar * XF: Xerophthalmic fundus * **Biochemical Criteria:** Serum retinol levels ** 5% of the population also signifies a public health problem. * **Prophylaxis:** Under the National Vitamin A Prophylaxis Program, the first dose (1 lakh IU) is given at 9 months (with Measles vaccine), followed by 2 lakh IU every 6 months until age 5 (Total 9 doses/17 lakh IU).

Q: What is the content of elemental iron and folic acid in the adult IFA tablet?

100 mg iron & 500 mcg folic acid. ### Explanation The correct answer is **D: 100 mg iron & 500 mcg folic acid**. This dosage is standardized under the **Anemia Mukt Bharat (AMB)** strategy (formerly NIPI) for the prevention and treatment of nutritional anemia in adults. The tablet contains **100 mg of elemental iron** (usually as 305 mg of Ferrous Sulphate) and **500 mcg (0.5 mg) of Folic Acid**. #### Why the other options are incorrect: * **Option A & B:** These represent incorrect ratios. While 100 mg of iron is the standard adult dose, the folic acid component must be 500 mcg to support DNA synthesis and erythropoiesis effectively in the target population. * **Option C:** This dosage (20 mg iron & 100 mcg folic acid) is the specific formulation used for **pediatric** age groups (children aged 5–9 years), not adults. #### High-Yield Clinical Pearls for NEET-PG: * **Prophylactic Schedule:** For pregnant and lactating women, the regimen is **one tablet daily for 180 days**, starting from the second trimester (13 weeks). * **WIFS (Weekly Iron Folic Acid Supplementation):** For adolescents (10–19 years) and women of reproductive age (non-pregnant/non-lactating), the dose is **one tablet weekly**. * **Color Coding:** * **Blue Tablet:** Adolescents (60 mg Iron + 500 mcg FA). * **Red Tablet:** Adults/Pregnant/Lactating (100 mg Iron + 500 mcg FA). * **Pink Tablet:** Children 5–9 years (45 mg Iron + 400 mcg FA). * **IFA Syrup (Bi-weekly):** For children 6–59 months (20 mg Iron + 100 mcg FA per 1 ml).

Q: What is the minimum number of feeding days per year recommended under the Mid-day Meal Programme?

250. ### Explanation **1. Why Option B (250) is Correct:** The Mid-day Meal (MDM) Scheme, now renamed **PM POSHAN**, is a centrally sponsored scheme designed to improve the nutritional status of school-age children. According to the operational guidelines, the programme mandates a minimum of **250 feeding days per year**. This duration is calculated based on the average number of working days in a primary and upper primary school calendar, ensuring that children receive at least one nutritious meal on every school day to combat "classroom hunger" and improve enrollment. **2. Why Other Options are Incorrect:** * **Option A (200):** While some state-specific primary school calendars may hover around 200-220 days, the national mandate for MDM is higher to ensure nutritional continuity. * **Option C (300):** This is the minimum number of feeding days required under the **Integrated Child Development Services (ICDS)** scheme for supplementary nutrition (for children <6 years, pregnant, and lactating mothers). This is a common point of confusion for NEET-PG aspirants. * **Option D (350):** This is unrealistic for a school-based programme as it would require the school to remain open almost every day of the year, including long vacations and holidays. **3. High-Yield Clinical Pearls for NEET-PG:** * **Nutritional Norms (Per Day):** * **Primary (Class 1-5):** 450 Calories and 12g Protein. * **Upper Primary (Class 6-8):** 700 Calories and 20g Protein. * **Ingredients:** The meal must include pulses, vegetables, oil/fats, and salt (double fortified with Iodine and Iron). * **Objective:** It aims to address both **Protein-Energy Malnutrition (PEM)** and micronutrient deficiencies (like Iron Deficiency Anemia). * **Monitoring:** The scheme is monitored using the **Management Information System (MIS)** and includes periodic health check-ups under Rashtriya Bal Swasthya Karyakram (RBSK).

Q: Codex alimentarius is related to which of the following?

Food standardization. **Explanation:** **Codex Alimentarius** (Latin for "Food Code") is a collection of internationally recognized standards, codes of practice, and guidelines relating to food, food production, and food safety. It was established in 1963 by the **Food and Agriculture Organization (FAO)** and the **World Health Organization (WHO)**. Its primary objectives are to protect consumer health and ensure fair practices in the international food trade. Therefore, it is directly related to **Food standardization**. **Analysis of Options:** * **Option A (Water purity):** Water standards are typically governed by the WHO Guidelines for Drinking-water Quality (GDWQ) and, in India, by BIS (Bureau of Indian Standards) IS 10500. * **Option B (Milk purity):** While Codex includes standards for milk products, "Milk Purity" specifically is often associated with the PFA (Prevention of Food Adulteration) Act or FSSAI in India. Codex is a broader international umbrella for all food categories. * **Option C (Air pollution):** Air quality standards are managed by environmental agencies (e.g., CPCB in India) and follow WHO Air Quality Guidelines, which are unrelated to the Codex Alimentarius Commission. **High-Yield Facts for NEET-PG:** * **Codex India:** The National Codex Contact Point (NCCP) for India is located at the **FSSAI** (Food Safety and Standards Authority of India), New Delhi. * **PFA Act (1954):** The primary Indian legislation for food safety (now subsumed under FSSAI Act 2006). * **Agmark:** A quality certification mark for agricultural produce in India. * **ISI Mark:** Issued by the Bureau of Indian Standards (BIS) for processed food items and equipment. * **HACCP:** Hazard Analysis Critical Control Point is the systematic preventive approach to food safety often integrated into Codex standards.

Q: Which food group contains the highest amount of iron?

Meat. **Explanation:** The correct answer is **Meat** because of the concept of **Bioavailability**. In nutrition, iron is classified into two types: **Heme iron** (found in animal sources) and **Non-heme iron** (found in plant sources). 1. **Why Meat is Correct:** Animal tissues (red meat, liver, organ meats) contain Heme iron, which has an absorption rate of **15–35%**. This is significantly higher than the absorption rate of non-heme iron (2–10%). Therefore, even if a plant source has a higher absolute milligram count, meat provides the highest amount of *utilizable* iron to the body. 2. **Why others are incorrect:** * **Milk:** It is notoriously poor in iron. In fact, milk is considered a **"poor source"** of both Iron and Vitamin C. * **Spinach:** While spinach contains iron, it is non-heme iron. Furthermore, spinach is rich in **oxalates and phytates**, which act as inhibitors and further decrease iron absorption. * **Jaggery:** It is a good source of iron (often due to processing in iron vessels), but it is non-heme and lacks the superior bioavailability of meat. **High-Yield NEET-PG Pearls:** * **Enhancers of Iron Absorption:** Vitamin C (Ascorbic acid) and "Meat Factor." * **Inhibitors of Iron Absorption:** Phosphates, Phytates, Oxalates, Tannins (Tea/Coffee), and Calcium. * **Richest Source:** Among animal sources, **Liver** is the richest source of iron. Among plant sources, **Pistachios** and certain green leafy vegetables (like Amaranth) are high, but bioavailability remains the limiting factor. * **Daily Requirement:** An average adult male requires ~17 mg/day, while a pregnant woman requires ~35 mg/day (as per latest ICMR-NIN guidelines).

Q: What is the net protein utilization of rice?

63%. **Explanation:** **Net Protein Utilization (NPU)** is a key indicator of protein quality, representing the proportion of dietary protein that is actually retained by the body. It is calculated as: *NPU = (Biological Value × Digestibility Coefficient) / 100.* **1. Why 63% is Correct:** Rice has an NPU of approximately **63%**. While rice is not high in total protein quantity (approx. 7%), the **quality** of its protein is the highest among all cereals. This is because rice protein has a better balance of essential amino acids compared to wheat or maize. **2. Analysis of Incorrect Options:** * **20% (Option A):** This value is too low for any common food source. Even poor-quality proteins generally have an NPU above 30-40%. * **40% (Option B):** This is closer to the NPU of certain pulses or lower-quality vegetable proteins when consumed in isolation, but it underestimates rice. * **81% (Option D):** This is the NPU for **Milk**. Animal proteins (except gelatin) generally have much higher NPU values than plant proteins. For comparison, **Egg** (the reference protein) has an NPU of **94%**, and **Meat** is approximately **75-80%**. **High-Yield NEET-PG Pearls:** * **Reference Protein:** Egg is considered the "standard" or reference protein due to its high biological value (100) and NPU (94). * **Limiting Amino Acid:** Rice is deficient in **Lysine** (like most cereals) but is relatively rich in sulfur-containing amino acids (Methionine/Cysteine). * **Pulse-Cereal Mix:** The NPU of a diet improves when cereals and pulses are eaten together (ratio 4:1) because they complement each other's limiting amino acids (Lysine and Methionine). * **NPU of Wheat:** Approximately **49%** (significantly lower than rice).

Question 1

Lowering of which of the following parameters indicates acute malnutrition?

Accepted Answer

Weight for height

Answer

Weight for age

Answer

Height for age

Answer

Body Mass Index (BMI)

Question 2

Vitamin A deficiency is considered a public health problem if the prevalence rate of night blindness in children between 6 months and 6 years is more than?

Accepted Answer

1.00%

Answer

0.01%

Answer

0.05%

Answer

0.10%

Question 3

Which of the following grains provides the best quality proteins in the highest quantities?

Accepted Answer

Rice

Answer

Wheat

Answer

Ragi

Answer

Bajra

Question 4

What is the recommended daily dietary calcium intake for pregnant and lactating mothers in mg?

Accepted Answer

1000 mg

Answer

400 mg

Answer

600 mg

Answer

800 mg

Question 5

Xerophthalmia is considered a problem in a community if:

Accepted Answer

Night blindness >1%

Answer

Bitot spots >1%

Answer

Corneal ulceration >0.05%

Answer

Corneal scarring >0.5%

Question 6

What is the content of elemental iron and folic acid in the adult IFA tablet?

Accepted Answer

100 mg iron & 500 mcg folic acid

Answer

100 mg iron & 200 mcg folic acid

Answer

200 mg iron & 100 mcg folic acid

Answer

20 mg iron & 100 mcg folic acid

Question 7

What is the minimum number of feeding days per year recommended under the Mid-day Meal Programme?

Accepted Answer

250

Answer

200

Answer

300

Answer

350

Question 8

Codex alimentarius is related to which of the following?

Accepted Answer

Food standardization

Answer

Water purity

Answer

Milk purity

Answer

Air pollution

Question 9

Which food group contains the highest amount of iron?

Accepted Answer

Meat

Answer

Milk

Answer

Spinach

Answer

Jaggery

Question 10

What is the net protein utilization of rice?

Accepted Answer

63%

Answer

20%

Answer

40%

Answer

81%

Nutrition and Health — MCQs

Nutrition and Health — MCQs

On this page

Practice by Chapter

Want unlimited practice?