Nutrition and Health Practice Questions

Q: What is the Body Mass Index (BMI) range for pre-obesity?

25-29.9. **Explanation:** Body Mass Index (BMI), or Quetelet’s Index, is a standard epidemiological tool used to classify nutritional status in adults. It is calculated as weight in kilograms divided by the square of height in meters ($kg/m^2$). **1. Why Option C is Correct:** According to the **WHO Classification of Weight Status**, the range **25.0–29.9 $kg/m^2$** is specifically designated as **Pre-obesity** (also commonly referred to as Overweight). At this stage, there is an increased risk of co-morbidities, serving as a critical window for lifestyle intervention before reaching clinical obesity. **2. Analysis of Incorrect Options:** * **Option A (< 18.5):** This range defines **Underweight** status. * **Option B (18.5–24.9):** This is the **Normal (Healthy) range**, associated with the lowest statistical risk of chronic diseases. * **Option D (≥ 30):** This defines **Obesity**. It is further subdivided into Class I (30–34.9), Class II (35–39.9), and Class III (≥ 40). **High-Yield Clinical Pearls for NEET-PG:** * **Asian-Indian Specific Criteria:** Due to a higher risk of metabolic syndrome at lower BMIs, the cut-offs for Indians are lower: * Normal: 18.5–22.9 $kg/m^2$ * Overweight/Pre-obese: **23.0–24.9 $kg/m^2$** * Obese: **≥ 25 $kg/m^2$** * **Ponderal Index:** Another measure of thinness ($Weight/Height^3$). * **Corpulence Index:** Used for children ($Weight/Height^{2.98}$). * **Best Indicator of Abdominal Obesity:** Waist-to-hip ratio (Significant if > 0.9 in men; > 0.85 in women).

Q: Which of the following trace elements is associated with hypothyroidism in the Himalayan region?

Selenium. **Explanation:** The correct answer is **Selenium (D)**. While Iodine deficiency is the primary cause of endemic goiter and hypothyroidism in the Himalayan region (the "Goiter Belt"), Selenium plays a critical role as a co-factor for the enzyme **Type 1 iodothyronine deiodinase**. This enzyme is responsible for converting the pro-hormone Thyroxine (T4) into its active form, Triiodothyronine (T3). In the Himalayan region, the soil is often deficient in both Iodine and Selenium. A concurrent deficiency of Selenium exacerbates hypothyroidism because, even if some T4 is produced, it cannot be efficiently converted to active T3. **Analysis of Incorrect Options:** * **Copper (A):** Copper is essential for iron metabolism (via ceruloplasmin) and collagen synthesis. Its deficiency leads to Menkes disease or microcytic anemia, but it is not a primary driver of Himalayan hypothyroidism. * **Iron (B):** While Iron is a cofactor for *Thyroid Peroxidase* (TPO), and its deficiency can impair thyroid function, it is not the specific trace element classically associated with the geographical endemicity of the Himalayan belt in the context of this specific biochemical synergy. * **Zinc (C):** Zinc is involved in the synthesis of TRH and the binding of T3 to its nuclear receptor. However, its epidemiological link to the Himalayan endemic goiter is less significant than Selenium. **High-Yield NEET-PG Pearls:** * **Glutathione Peroxidase:** Selenium is also a key component of this antioxidant enzyme, which protects the thyroid gland from oxidative damage during hormone synthesis. * **Keshan Disease:** Remember that severe Selenium deficiency is also linked to Keshan disease (endemic cardiomyopathy). * **Double Deficiency:** In the Himalayan region, "Endemic Myxedematous Cretinism" is often attributed to the combined deficiency of Iodine and Selenium.

Q: Skimmed milk is devoid of:

Fat. **Explanation:** The correct answer is **Fat**. Skimmed milk is produced by the mechanical removal of cream from whole milk. By definition, skimmed milk must contain less than **0.5% fat** (usually 0.1%). During this process, almost all the fat-soluble components are removed, while the water-soluble components remain intact. * **Why Fat is correct:** The skimming process specifically targets the lipid content. Along with the fat, fat-soluble vitamins (A, D, E, and K) are also significantly reduced or lost, which is why skimmed milk is often fortified with Vitamin A and D. * **Why Carbohydrates (Lactose) are incorrect:** Lactose is water-soluble and remains in the serum (whey) portion of the milk. Skimmed milk actually has a slightly higher percentage of carbohydrate per volume compared to whole milk. * **Why Protein is incorrect:** The proteins (casein and whey) are not removed during skimming. In fact, skimmed milk is an excellent source of high-biological value protein. * **Why Vitamin B12 is incorrect:** Vitamin B12 is a water-soluble vitamin. It remains preserved in the aqueous phase of the milk after the fat is removed. **NEET-PG High-Yield Pearls:** * **Caloric Value:** Skimmed milk provides approximately **35-38 kcal/100g**, whereas whole cow's milk provides about 65-67 kcal/100g. * **Toned Milk:** Contains 3.0% fat and 8.5% SNF (Solids-Not-Fat). * **Double Toned Milk:** Contains 1.5% fat and 9.0% SNF. * **Nutritional Utility:** Skimmed milk is the preparation of choice for patients with obesity, cardiovascular diseases, or those requiring high-protein, low-calorie diets.

Q: What is the prophylactic dose of vitamin A given to children aged 1-6 years?

200,000 IU. ### Explanation The correct answer is **200,000 IU**. This dose is part of the **National Vitamin A Prophylaxis Programme**, which aims to prevent nutritional blindness due to Vitamin A Deficiency (VAD). **1. Why 200,000 IU is correct:** Vitamin A is a fat-soluble vitamin stored in the liver. In children aged **1 to 6 years**, the liver capacity is sufficient to store a large bolus dose that can be utilized over several months. Under the current guidelines, children in this age group receive **200,000 IU orally every 6 months** until their 5th birthday (totaling 9 doses starting from infancy). **2. Why the other options are incorrect:** * **100,000 IU (Option D):** This is the specific dose for infants aged **6 to 11 months**. Because infants have smaller liver storage capacity and a lower body weight, a half-dose is administered to prevent toxicity while ensuring adequate protection. * **2,000 IU (Option A):** This is closer to the Recommended Dietary Allowance (RDA) for daily intake, not a periodic prophylactic bolus. * **20,000 IU (Option B):** This dose does not correspond to any standard prophylactic or therapeutic protocol in the national program. **3. High-Yield Clinical Pearls for NEET-PG:** * **Schedule:** The 1st dose (1 lakh IU) is given at **9 months** with the Measles/MR vaccine. Subsequent doses (2 lakh IU) are given every 6 months up to **5 years** of age. * **Total Dosage:** A child receives a total of **17,00,000 IU** (17 lakh IU) across 9 doses by age five. * **Treatment of Xerophthalmia:** If a child has clinical signs (e.g., Bitot's spots), the schedule is: One dose on **Day 0**, one dose on **Day 1**, and one dose on **Day 28**. * **Oil-based:** Vitamin A is administered using a 2ml spoon (where 1ml = 1 lakh IU).

Q: What is true about lathyrism?

Prevented by parboiling. **Explanation:** Lathyrism is a form of permanent spastic paraplegia caused by the excessive consumption of **Khesari Dal (*Lathyrus sativus*)**. It is primarily seen in central India among socio-economically disadvantaged populations who use this pulse as a staple during droughts. **Why Option B is Correct:** The toxic principle in *Lathyrus sativus* is **BOAA** (Beta-oxalyl-amino-alanine), which is water-soluble. **Parboiling** (steeping the pulse in hot water and then drying it) effectively leaches out the toxin, reducing its concentration to safe levels. Another method for toxin removal is sun-drying followed by roasting. **Why Other Options are Incorrect:** * **Option A:** *Aspergillus flavus* is a fungus that produces **Aflatoxins**, which are associated with groundnuts and maize, leading to acute hepatitis and hepatocellular carcinoma, not lathyrism. * **Option C:** **Sanguinarine** is the toxic alkaloid found in Argemone oil (Mexican poppy). Its consumption leads to **Epidemic Dropsy**, characterized by bilateral edema, cardiac failure, and glaucoma. **NEET-PG High-Yield Pearls:** 1. **Toxic Principle:** BOAA (also known as ODAP). It acts as a neurotoxin by mimicking glutamate. 2. **Clinical Stages:** Lathyrism progresses through four stages: **Latent** (positive stick sign), **No-stick** (clumsy gait), **One-stick**, and **Two-stick** (permanent disability). 3. **Prevention:** The most effective long-term strategy is the replacement of *Lathyrus sativus* with safer crops like Bengal gram or the use of low-BOAA varieties. 4. **Target Population:** Typically affects young adult males (15–45 years) due to higher consumption levels.

Q: If ASHA finds any child lies in the yellow area according to the ICDS growth chart, what action should be taken?

Child is referred to the Primary Health Centre (PHC). ### Explanation The ICDS (Integrated Child Development Services) growth chart, based on WHO Growth Standards, uses a color-coded system to monitor a child's nutritional status based on **Weight-for-Age**. **1. Why Option B is Correct:** The growth chart is divided into three zones: * **Green Zone:** Normal nutritional status (Above -2SD). * **Yellow Zone:** Moderately underweight (Between -2SD and -3SD). * **Orange Zone:** Severely underweight (Below -3SD). When an ASHA or Anganwadi Worker identifies a child in the **Yellow Zone**, it indicates **Moderate Acute Malnutrition (MAM)**. According to ICDS guidelines, these children must be referred to the **Primary Health Centre (PHC)** for a medical check-up to rule out underlying infections and to receive targeted nutritional supplementation (Double Ration). **2. Why Other Options are Incorrect:** * **Option A:** Referral to a higher center (NRC or District Hospital) is reserved for children in the **Orange Zone** (Severe Acute Malnutrition) or those with medical complications. * **Option C:** While community-based management is part of the strategy, the immediate protocol-driven action for an ASHA is a formal referral to the PHC for assessment. * **Option D:** "Only follow-up" is insufficient. While follow-up is necessary, the child requires an initial clinical evaluation and supplementary nutrition. ### High-Yield Clinical Pearls for NEET-PG: * **Growth Chart Type:** The ICDS uses the **WHO Growth Standards (2006)**. * **Reference Parameters:** The ICDS chart specifically monitors **Weight-for-Age**. * **Growth Curve Trends:** A flat curve (stagnant weight) or a falling curve is a more sensitive indicator of malnutrition than a single point in the yellow zone. * **SAM Criteria:** Weight-for-height < -3SD, Mid-Upper Arm Circumference (MUAC) < 11.5 cm, or presence of bilateral pitting edema.

Q: According to WHO, exclusive breastfeeding should be continued up to what age?

6 months. **Explanation:** The World Health Organization (WHO) and UNICEF recommend **exclusive breastfeeding for the first 6 months (180 days)** of life. Exclusive breastfeeding means the infant receives only breast milk; no other liquids or solids are given, not even water, with the exception of oral rehydration solution, or drops/syrups of vitamins, minerals, or medicines. **Why 6 months is correct:** By 6 months of age, breast milk provides all the energy and nutrients that an infant needs. It offers critical protection against gastrointestinal infections and pneumonia. Beyond 6 months, breast milk alone is no longer sufficient to meet the increasing nutritional requirements (especially iron and energy), necessitating the introduction of nutritionally adequate and safe complementary foods while continuing breastfeeding. **Why other options are incorrect:** * **4 months:** Previously, some guidelines suggested 4–6 months, but research confirmed that extending exclusivity to 6 months significantly reduces morbidity from diarrheal diseases without compromising growth. * **8 and 10 months:** Delaying complementary feeding beyond 6 months puts the infant at risk for growth faltering, malnutrition, and micronutrient deficiencies (like iron-deficiency anemia). **High-Yield Clinical Pearls for NEET-PG:** * **Duration:** Breastfeeding should be continued up to **2 years of age or beyond** along with complementary feeding. * **Initiation:** Breastfeeding should be initiated within **1 hour** of birth. * **Colostrum:** The "first milk" is rich in Antibodies (IgA) and serves as the baby's first immunization. * **Energy Density:** Breast milk provides approximately **67 kcal/100 ml**. * **Contraindications:** Very few exist, primarily maternal HIV (in specific settings), active untreated TB, or infants with Galactosemia.

Q: Which of the following grains has the highest fat content?

Bajra. **Explanation:** The correct answer is **Bajra (Pearl Millet)**. In the context of nutritional profiles of cereals and millets, Bajra stands out for its high energy density, primarily due to its superior fat content compared to other common grains. **1. Why Bajra is Correct:** Bajra contains approximately **5 grams of fat per 100 grams**. This is significantly higher than the fat content found in major cereals. Beyond fat, Bajra is also a rich source of iron (8 mg/100g), making it a high-yield nutritional grain often discussed in the context of preventing nutritional anemia and providing energy-dense weaning foods. **2. Why the Other Options are Incorrect:** * **Wheat:** Contains about **1.5 to 2 grams** of fat per 100g. Its primary nutritional strength is its protein content (gluten) and B-complex vitamins. * **Rice:** Contains the least amount of fat among these options, approximately **0.5 to 1 gram** per 100g. Most of the fat is lost during the polishing process. * **Maize:** Contains about **3.6 grams** of fat per 100g. While higher than wheat and rice, it still falls short of Bajra. Maize is clinically significant for being deficient in Tryptophan and Lysine, leading to Pellagra in maize-eating populations. **3. High-Yield Facts for NEET-PG:** * **Highest Protein Content:** Wheat (~12%) and Bajra (~11.5%). * **Highest Calcium Content:** Ragi (Finger Millet) is the "Calcium King" with **344 mg/100g**. * **Limiting Amino Acid in Cereals:** Lysine (Cereals are generally rich in Methionine). * **Limiting Amino Acid in Pulses:** Methionine (Pulses are generally rich in Lysine). * **Pellagragenic Diet:** A diet based on Maize (due to low Tryptophan) or Jowar (due to high Leucine interfering with Tryptophan metabolism).

Question 1

What are the components of nutrition surveillance?

Accepted Answer

Policy maker

Answer

National survey

Answer

AFP surveillance

Answer

DOTS

Question 2

What is the Body Mass Index (BMI) range for pre-obesity?

Accepted Answer

25-29.9

Answer

Less than 18.5

Answer

18.5-24.9

Answer

Greater than or equal to 30

Question 3

All of the following are true about 'POSHAN' Abhiyaan except?

Accepted Answer

The focus is on health and nutrition in the first 1000 days of life.

Answer

Launched by the Prime Minister in March 2018.

Answer

It is the Prime Minister's overarching scheme for holistic nutrition.

Answer

Goals for this program include reduction in stunting, undernutrition, low birth weight, and anemia.

Question 4

Which of the following trace elements is associated with hypothyroidism in the Himalayan region?

Accepted Answer

Selenium

Answer

Copper

Answer

Iron

Answer

Zinc

Question 5

Skimmed milk is devoid of:

Accepted Answer

Fat

Answer

Carbohydrate

Answer

Protein

Answer

Vitamin B12

Question 6

What is the prophylactic dose of vitamin A given to children aged 1-6 years?

Accepted Answer

200,000 IU

Answer

2,000 IU

Answer

20,000 IU

Answer

100,000 IU

Question 7

What is true about lathyrism?

Accepted Answer

Prevented by parboiling

Answer

Caused by Aspergillus flavus

Answer

Sanguinarine is the toxic principle

Answer

All of the above

Question 8

If ASHA finds any child lies in the yellow area according to the ICDS growth chart, what action should be taken?

Accepted Answer

Child is referred to the Primary Health Centre (PHC)

Answer

Child is referred to a higher center

Answer

Community-based management of malnutrition

Answer

Only follow-up

Question 9

According to WHO, exclusive breastfeeding should be continued up to what age?

Accepted Answer

6 months

Answer

4 months

Answer

8 months

Answer

10 months

Question 10

Which of the following grains has the highest fat content?

Accepted Answer

Bajra

Answer

Wheat

Answer

Rice

Answer

Maize

Nutrition and Health — MCQs

Nutrition and Health — MCQs

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