Nutrition and Health Practice Questions

Q: Which of the following is the richest source of Vitamin C?

Amla. **Explanation:** Vitamin C (Ascorbic Acid) is a water-soluble vitamin essential for collagen synthesis, antioxidant defense, and iron absorption. In the context of Indian dietetics and NEET-PG, the concentration of Vitamin C per 100g of edible portion is the standard for comparison. **Why Amla is the correct answer:** **Amla (Indian Gooseberry)** is recognized as the richest source of Vitamin C among common foods, containing approximately **600 mg per 100g**. It is unique because its Vitamin C content is highly stable even when dried or heated, due to the presence of tannins that prevent oxidation. **Analysis of Incorrect Options:** * **Guava:** While an excellent source, it contains roughly **212 mg per 100g**. It is often considered the "cheapest" rich source but ranks second to Amla. * **Orange:** Citrus fruits are the most famous sources, but they contain only about **30–50 mg per 100g**, significantly less than Amla or Guava. * **Cabbage:** Among vegetables, green leafy vegetables and cabbage are good sources (approx. **120 mg per 100g**), but they do not surpass the concentrations found in Amla. **High-Yield NEET-PG Pearls:** 1. **Richest Source overall:** Barbados Cherry (approx. 1600 mg/100g), but Amla is the richest among *commonly available* Indian sources. 2. **Animal Sources:** Vitamin C is generally absent in animal products, except in small amounts in liver and kidney. **Milk is a very poor source.** 3. **Scurvy:** Deficiency leads to "corkscrew hair," perifollicular hemorrhages, and swollen, bleeding gums. 4. **Cooking:** Vitamin C is the most heat-labile vitamin; it is easily destroyed by prolonged boiling or cooking in open pans.

Q: What is the Body Mass Index (BMI) of a 46-year-old man who weighs 98kg and is 175cm tall?

32. **Explanation:** The Body Mass Index (BMI), also known as the Quetelet Index, is a standard anthropometric measure used to classify nutritional status in adults. It is calculated using the formula: **BMI = Weight (kg) / [Height (m)]²** **Step-by-Step Calculation:** 1. **Convert Height to Meters:** 175 cm = 1.75 m. 2. **Square the Height:** 1.75 × 1.75 = 3.0625. 3. **Divide Weight by Height Squared:** 98 / 3.0625 = **32.0 kg/m²**. **Analysis of Options:** * **Option B (32) is Correct:** Based on the calculation above. According to WHO classification, a BMI of 32.0 falls into **Obesity Class I** (30.0–34.9). * **Option A (28):** This would correspond to a weight of approximately 85 kg. This range (25–29.9) is classified as **Overweight**. * **Option C (36):** This would require a weight of approximately 110 kg. This falls into **Obesity Class II** (35.0–39.9). * **Option D (40):** This would require a weight of approximately 122 kg. A BMI ≥ 40 is classified as **Obesity Class III** (Morbid Obesity). **High-Yield Clinical Pearls for NEET-PG:** * **Asian-Indian Specific Criteria:** Due to higher body fat percentages at lower BMIs, the cut-offs for Indians are lower: * Normal: 18.5–22.9 kg/m² * Overweight: 23.0–24.9 kg/m² * Obese: ≥ 25.0 kg/m² * **Limitation:** BMI does not distinguish between muscle mass and fat mass (e.g., athletes may have a high BMI but low body fat). * **Ponderal Index:** Another measure calculated as Weight (kg) / [Height (m)]³. It is often used in neonatology to assess intrauterine growth retardation.

Q: Which of the following findings does NOT indicate poor nutrition in children?

Low birth weight. **Explanation:** The correct answer is **A. Low birth weight**. **1. Why Low Birth Weight (LBW) is the correct answer:** In the context of assessing the nutritional status of a child *after* birth, LBW is considered an **indicator of maternal health and intrauterine environment**, rather than the child’s current nutritional status. While LBW is a significant risk factor for future malnutrition, it is technically a retrospective measure of fetal growth. In community medicine, indicators of "poor nutrition in children" typically refer to postnatal parameters like anthropometry (stunting/wasting) or biochemical markers. **2. Analysis of Incorrect Options:** * **B. Infection:** There is a bidirectional relationship between nutrition and infection. Malnutrition leads to immunodeficiency, making children more susceptible to infections (e.g., diarrhea, ARI), which in turn worsens nutritional status. Thus, frequent infections are a clinical indicator of poor nutrition. * **C. Hemoglobin < 11 gm%:** According to WHO criteria, a hemoglobin level below 11 gm/dL in children (6–59 months) defines **Anemia**. This is a direct biochemical indicator of micronutrient deficiency (primarily Iron, B12, or Folic acid). * **D. Malnutrition:** This is the direct clinical manifestation of poor nutrition, encompassing undernutrition (wasting, stunting, underweight) and micronutrient deficiencies. **High-Yield Clinical Pearls for NEET-PG:** * **LBW Definition:** Birth weight < 2500 grams regardless of gestational age. * **Most Sensitive Indicator:** **Weight-for-age** is the most sensitive indicator for acute malnutrition in the community. * **Chronic Malnutrition:** Represented by **Stunting** (Low height-for-age). * **Acute Malnutrition:** Represented by **Wasting** (Low weight-for-height). * **Shakir’s Tape:** Used for Mid-Upper Arm Circumference (MUAC); < 12.5 cm indicates malnutrition in children aged 1–5 years.

Q: Soya bean is rich in which of the following amino acids?

Lysine. **Explanation:** The correct answer is **Lysine (Option A)**. In Community Medicine and Nutrition, proteins are categorized based on their amino acid profile. Most plant-based proteins are "incomplete" because they lack one or more essential amino acids. However, **Soybean** is a unique exception; it is a high-quality plant protein that contains all essential amino acids. Specifically, it is exceptionally rich in **Lysine**, which is the "limiting amino acid" in most cereal grains (like wheat and rice). **Why other options are incorrect:** * **Options B, C, and D (Aspartic acid, Glycine, Alanine):** These are **non-essential amino acids**, meaning the body can synthesize them internally. While they are present in soybean, they are not the defining nutritional characteristic of the legume. In the context of competitive exams, the focus is always on the **limiting amino acids** (Lysine in cereals, Methionine in pulses). **High-Yield Clinical Pearls for NEET-PG:** * **The "Mutual Supplementation" Concept:** Since cereals are deficient in Lysine but rich in Methionine, and pulses (like Soy) are rich in Lysine but deficient in Methionine, a diet combining both (e.g., Dal-Chawal) provides a complete protein profile. * **Protein Efficiency Ratio (PER):** Soybean has a high PER (approx. 2.1), making it one of the best vegetarian sources of protein. * **Limiting Amino Acids Table:** * **Cereals (Wheat/Rice):** Lysine (Deficient), Methionine (Rich). * **Pulses/Legumes:** Methionine (Deficient), Lysine (Rich). * **Maize:** Tryptophan and Lysine (Deficient). * **Soybean Composition:** It contains approximately 40% protein and 20% fat, making it a "dual-purpose" crop.

Q: Which of the following statements about the Gomez classification of malnutrition is false?

It is based on height retardation.. ### Explanation The **Gomez classification** is one of the earliest methods used to assess protein-energy malnutrition (PEM) in children. **1. Why Option A is the Correct Answer (False Statement):** The Gomez classification is based **exclusively on weight-for-age**, not height. It measures the child's current weight as a percentage of the expected weight for a child of the same age. Height retardation (stunting) is a feature of the **Waterlow classification**, which distinguishes between acute malnutrition (wasting) and chronic malnutrition (stunting). **2. Analysis of Other Options:** * **Option B:** Gomez used the **50th percentile of the Boston Standards** (Harvard Standards) as the reference point for "normal" weight-for-age. * **Option C:** The classification grades are: * **Normal:** >90% of expected weight. * **Grade I (Mild):** 75–89%. * **Grade II (Moderate):** 60–74%. * **Grade III (Severe):** <60% (includes all cases of edema/Kwashiorkor regardless of weight). * **Option D:** It has significant **prognostic value**; children in Grade II and III have a higher risk of morbidity and mortality, often requiring hospitalization and intensive nutritional rehabilitation. ### High-Yield Clinical Pearls for NEET-PG * **Formula:** (Observed weight / Weight of normal child of same age) × 100. * **Limitation:** It does not differentiate between **stunting** (chronic) and **wasting** (acute) and does not account for the presence of edema. * **IAP Classification:** A common alternative in India, which also uses weight-for-age but defines Grade III as 50–60% and Grade IV as <50%. * **Current Standard:** The WHO Growth Charts (Z-scores) have largely replaced Gomez in clinical practice for assessing malnutrition.

Q: Dietary Reference Intake recommendations include all of the following except:

Food-based dietary guidelines. **Explanation:** The **Dietary Reference Intake (DRI)** is a system of nutrition recommendations used to plan and assess nutrient intakes of healthy people. It is a quantitative, nutrient-based framework rather than a qualitative, food-based one. **1. Why "Food-based dietary guidelines" is the correct answer:** Food-based dietary guidelines (FBDG) are **qualitative** recommendations (e.g., "Eat 5 portions of fruits and vegetables" or "Choose whole grains"). In contrast, DRIs are **quantitative** values expressed in specific units (mg, mcg, or kcal) for individual nutrients. While FBDGs translate nutritional science into practical food choices, they are not a component of the DRI framework. **2. Analysis of incorrect options (Components of DRI):** * **Recommended Dietary Allowances (RDA):** The average daily dietary intake level sufficient to meet the nutrient requirements of nearly all (97–98%) healthy individuals in a particular life stage and gender group. * **Adequate Intake (AI):** Used when evidence is insufficient to develop an RDA. It is a value based on observed or experimentally determined approximations of nutrient intake by a group of healthy people. * **Tolerable Upper Intake Level (UL):** The highest level of daily nutrient intake that is likely to pose no risk of adverse health effects to almost all individuals in the general population. **High-Yield NEET-PG Pearls:** * **Estimated Average Requirement (EAR):** The intake level for a nutrient at which the needs of 50% of the population will be met. * **RDA Formula:** $RDA = EAR + 2 SD$ (Standard Deviation). * **Net Protein Utilization (NPU):** For an average Indian diet, NPU is approximately **65**. * **Reference Protein:** Egg protein is considered the reference protein (Biological Value = 100).

Q: What is the most immediate treatment for night blindness?

Oral vitamin A. **Explanation** The correct answer is **B. Oral vitamin A**. **Why Oral Vitamin A is the Correct Choice:** Night blindness (Nyctalopia) is the earliest clinical symptom of Vitamin A deficiency (Xerophthalmia). According to WHO guidelines and the National Programme for Control of Blindness, the **oral route** is the preferred and most effective method for treatment and prophylaxis. Vitamin A is a fat-soluble vitamin that is well-absorbed from the gastrointestinal tract even in the presence of mild malabsorption. Oral administration is non-invasive, cost-effective, and carries a lower risk of anaphylaxis compared to other routes. **Why Other Options are Incorrect:** * **A. Topical Vitamin A:** Vitamin A must be metabolized into retinaldehyde to function in the visual cycle (rhodopsin regeneration). Topical application to the cornea does not provide the systemic levels required for retinal function and is not a standard treatment for night blindness. * **C. Parenteral Vitamin A:** Intramuscular (IM) injections are reserved only for patients with severe malabsorption, persistent vomiting, or conditions like paralytic ileus. Furthermore, the water-miscible IM preparation is often less available and more expensive than oral capsules. **High-Yield Clinical Pearls for NEET-PG:** * **Treatment Schedule:** For children >1 year with clinical signs, the dose is **200,000 IU orally** immediately on diagnosis, followed by a second dose the next day, and a third dose after 1-4 weeks. * **Earliest Sign vs. Symptom:** Night blindness is the earliest **symptom**, while Conjunctival Xerosis is the earliest **sign**. * **Bitot’s Spots:** These represent keratinized epithelial debris and are classified as **X1B** in the WHO classification. * **Prophylaxis Dose:** Under the National Vitamin A Prophylaxis Programme, children aged 6–11 months receive 1 lakh IU, and children 1–5 years receive 2 lakh IU every 6 months.

Q: Which of the following statements is FALSE?

Vitamin A is used for the prophylaxis of Lathyrism.. ### Explanation **1. Why Option D is the Correct Answer (The False Statement):** Lathyrism is a nervous system disorder (Neurolathyrism) caused by the chronic consumption of *Lathyrus sativus* (Khesari dal), which contains the neurotoxin **BOAA** (Beta-oxalyl-amino-alanine). **Vitamin A has no role in the prophylaxis of Lathyrism.** The primary prevention strategy involves banning the crop, removing the toxin (parboiling or steeping), or promoting "dilution" by mixing it with other cereals. Vitamin A prophylaxis is specifically used to prevent nutritional blindness (Xerophthalmia). **2. Analysis of Other Options (True Statements):** * **Option A:** Milk is famously known as a "poor source" of **Iron and Vitamin C**. It is, however, a rich source of calcium and high-quality proteins. * **Option B:** Eggs are considered a "reference protein" (Biological Value = 94) and contain almost all vitamins except **Vitamin C**. * **Option C:** Soybeans are botanically legumes. In nutritional classification, they are grouped under **Pulses** but are unique due to their high protein (40%) and fat (20%) content, often referred to as "the meat of the field." **3. NEET-PG High-Yield Pearls:** * **Lathyrism Stages:** Latent → No-stick → One-stick → Two-stick → Crawler stage. * **BOAA Toxin:** Also known as ODAP. Safe limit in pulses is <0.2%. * **Milk Deficiency:** Remember the mnemonic "Milk is **I**n**C**omplete" (Lacks **I**ron and Vitamin **C**). * **Reference Protein:** Egg is the gold standard for comparing protein quality. * **Limiting Amino Acids:** Pulses are deficient in Methionine; Cereals are deficient in Lysine. Soybeans are an exception as they are relatively rich in Lysine.

Q: Which of the following statements is true regarding the given program?

IFA supplementation for adolescents aged 10-19 years: Iron (60 mg), Folic Acid (500 mcg) Weekly - Blue tablet.. ***IFA supplementation for adolescents aged 10-19 years: Iron (60 mg), Folic Acid (500 mcg) Weekly - Blue tablet.*** - Under the **WIFS program** of Anemia Mukt Bharat, adolescents (10-19 years) receive **weekly IFA supplementation** with the correct dose of Iron 60 mg and Folic Acid 500 mcg in blue tablets. - This is the standard protocol for **preventing anemia** in adolescents as part of the **National Iron Plus Initiative**. *Deworming of children aged 5-9 years with Albendazole 400 mg - 2 tablets.* - **Albendazole dose** for children aged 5-9 years is **400 mg as a single tablet**, not 2 tablets. - The **National Deworming Day** protocol specifies one 400 mg tablet for children above 2 years of age. *IFA supplementation in children aged 5-9 years: Iron (45 mg), Folic Acid (500 mcg) Weekly - Pink tablet.* - Children aged 5-9 years receive **Iron 45 mg and Folic Acid 250 mcg weekly**, not 500 mcg of folic acid. - The **pink tablet** is correct for this age group, but the **folic acid dose is incorrect** in this option. *IFA supplementation for children aged 6-59 months: Iron (30 mg), Folic Acid (200 mcg) Biweekly - Bottle 50 ml.* - Children aged 6-59 months receive **Iron 20 mg and Folic Acid 100 mcg twice weekly**, not the doses mentioned. - The supplementation is given **twice weekly**, not biweekly, and comes in **2.5 ml syrup bottles**.

Question 1

Based on epidemiological studies, which of the following has been found to be most protective against carcinoma of the colon?

Accepted Answer

High fiber diet

Answer

Low fat diet

Answer

Low selenium diet

Answer

Low protein diet

Question 2

Which of the following is the richest source of Vitamin C?

Accepted Answer

Amla

Answer

Orange

Answer

Guava

Answer

Cabbage

Question 3

What is the Body Mass Index (BMI) of a 46-year-old man who weighs 98kg and is 175cm tall?

Accepted Answer

32

Answer

28

Answer

36

Answer

40

Question 4

Which of the following findings does NOT indicate poor nutrition in children?

Accepted Answer

Low birth weight

Answer

Infection

Answer

Hemoglobin < 11 gm%

Answer

Malnutrition

Question 5

Soya bean is rich in which of the following amino acids?

Accepted Answer

Lysine

Answer

Aspartic acid

Answer

Glycine

Answer

Alanine

Question 6

Which of the following statements about the Gomez classification of malnutrition is false?

Accepted Answer

It is based on height retardation.

Answer

It uses the 50th percentile Boston standards.

Answer

A value between 75 and 89% implies mild malnutrition.

Answer

This classification has prognostic value for hospitalization of children.

Question 7

Dietary Reference Intake recommendations include all of the following except:

Accepted Answer

Food-based dietary guidelines

Answer

Recommended Dietary Allowances

Answer

Adequate Intake

Answer

Upper tolerable level

Question 8

What is the most immediate treatment for night blindness?

Accepted Answer

Oral vitamin A

Answer

Topical vitamin A

Answer

Parenteral vitamin A

Answer

None of the above

Question 9

Which of the following statements is FALSE?

Accepted Answer

Vitamin A is used for the prophylaxis of Lathyrism.

Answer

Milk is a poor source of iron.

Answer

Eggs are a poor source of vitamin C.

Answer

Soybeans are classified as pulses.

Question 10

Which of the following statements is true regarding the given program?

Accepted Answer

IFA supplementation for adolescents aged 10-19 years: Iron (60 mg), Folic Acid (500 mcg) Weekly - Blue tablet.

Answer

Deworming of children aged 5-9 years with Albendazole 400 mg - 2 tablets.

Answer

IFA supplementation in children aged 5-9 years: Iron (45 mg), Folic Acid (500 mcg) Weekly - Pink tablet.

Answer

IFA supplementation for children aged 6-59 months: Iron (30 mg), Folic Acid (200 mcg) Biweekly - Bottle 50 ml.

Nutrition and Health — MCQs

Nutrition and Health — MCQs

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