Nutrition and Health Practice Questions

Q: Which of the following is considered an inexpensive source of iron?

Jaggery. ***Jaggery*** - **Jaggery** is a traditional unrefined sugar product commonly consumed in Asia and Africa, which is rich in **iron** due to the concentration of minerals during its production. - It is often considered an **inexpensive** and accessible source of iron, especially in rural areas, compared to other fortified foods or supplements. *Almonds* - While almonds contain some iron, the amount is relatively low, and they are generally considered a more **expensive** food source compared to jaggery. - Almonds are primarily known for their high content of healthy fats, fiber, and **vitamin E**, rather than iron. *Grapes* - Grapes contain minimal amounts of iron, and they are not considered a significant or **inexpensive** source to address iron deficiency. - They are primarily recognized for their **antioxidant properties** and high water content. *Soybeans* - Soybeans are a good source of **non-heme iron**, but their bioavailability can be affected by **phytates**, natural compounds that inhibit iron absorption. - While nutritious, they might not be as readily available or **inexpensive** in all regions as jaggery, especially for populations with limited resources.

Q: A 70 kg farmer is consuming 56 grams of protein, 275 grams of carbohydrates, and 60 grams of lipids. How does his caloric intake compare to the estimated daily needs for a moderately active male?

Less than the recommended intake. ***Less than the recommended intake*** - The farmer's total caloric intake is approximately 1864 kcal (Protein: 56g x 4 kcal/g = 224 kcal; Carbs: 275g x 4 kcal/g = 1100 kcal; Lipids: 60g x 9 kcal/g = 540 kcal), which is **lower than the estimated needs** for a moderately active male. - A moderately active male typically requires about **2400-2800 kcal/day** depending on age and specific activity levels. *More than the recommended intake* - His calculated intake of 1864 kcal is on the **lower end** and does not exceed the general recommendations for moderately active adult males. - This option would be correct if the calculated intake was significantly higher than the average daily caloric requirements. *Adequate for his needs* - While 1864 kcal might be adequate for a very sedentary lifestyle, a farmer (implied to be **moderately active**) would generally require a **higher caloric intake** to meet energy demands and maintain body weight. - A caloric intake closer to 2400-2800 kcal/day would be considered more appropriate for a moderately active individual. *Cannot be determined* - The caloric content of macronutrients is standard (4 kcal/g for protein and carbohydrates, 9 kcal/g for lipids), allowing for a **direct calculation** of total caloric intake. - While exact individual needs can vary, general dietary guidelines provide a sufficient basis to assess if this intake is likely low, adequate, or high for a moderately active individual.

Q: Most common nutritional problem in India?

Iron deficiency anemia. ***Iron deficiency anemia*** - **Iron deficiency anemia** is the most prevalent nutritional disorder in India, affecting a significant portion of its population across all age groups. - This widespread deficiency leads to impaired cognitive development, reduced work productivity, and increased susceptibility to infections. *Low birth weight* - While a significant public health issue in India, **low birth weight** is often a consequence of maternal malnutrition, including iron deficiency, rather than a primary nutritional problem itself. - It reflects broader issues of maternal health and nutrition, but not the single most common *nutritional problem* in the general population. *Fluorosis* - **Fluorosis** is a problem in specific regions of India due to excessive fluoride in drinking water, leading to dental and skeletal issues. - It is a localized problem and not the most widespread nutritional deficiency across the entire country. *Vitamin A deficiency* - **Vitamin A deficiency** is a significant public health concern in India, particularly among children, contributing to blindness and increased mortality. - However, its prevalence, while high, is generally considered lower than that of iron deficiency anemia in the overall population.

Q: What is the approximate daily iron requirement for a healthy Indian male?

17 mg. ***17 mg*** - The **Indian Council of Medical Research (ICMR)** recommends approximately **17 mg/day** of iron for adult Indian males to account for the predominantly **vegetarian diet** in India. - Indian diets are rich in **phytates, tannins, and dietary fiber** which significantly reduce iron bioavailability (non-heme iron absorption is only 5-10% compared to 15-25% for heme iron). - This higher recommendation ensures adequate iron absorption to maintain **hemoglobin synthesis** and prevent iron deficiency despite lower bioavailability. *10 mg* - This is the recommendation for populations with predominantly **non-vegetarian diets** (like Western countries) where heme iron from meat has higher bioavailability. - For the **Indian context**, this amount would be **insufficient** given the lower bioavailability of iron from plant-based sources. - While adequate for Western populations, it does not account for India-specific dietary patterns. *35 mg* - This is a **therapeutic dose** used for treating iron deficiency anemia or during pregnancy, not a routine daily requirement. - Such high doses are prescribed under medical supervision for specific clinical conditions and could lead to **gastrointestinal side effects** or iron overload with chronic use. *5 mg* - This amount is **grossly insufficient** for any adult male population and would lead to **negative iron balance** and eventual iron deficiency. - Daily iron losses through desquamation, sweat, and GI tract are approximately 1 mg, requiring adequate dietary intake to maintain iron homeostasis.

Q: Which of the following is true regarding the average height of Indian women?

Average height is 152 cm. ***Average height is 152 cm*** - According to the **National Family Health Survey-5 (NFHS-5, 2019-21)**, the average height of Indian women aged 15-49 years is approximately **152.0 cm** (approximately 5 feet). - This figure is based on nationally representative data covering all states and union territories. - Regional variations exist, with women in northern states generally being slightly taller than those in eastern and southern states. *Average weight is 60 kg* - The average weight for Indian women, according to **NFHS-5**, is closer to **55-57 kg**, not 60 kg. - 60 kg is above the national average, though it may reflect values in certain urban or affluent populations. - Weight varies significantly based on age, socioeconomic status, and regional dietary patterns. *Average BMI is 22* - While a BMI of 22 is within the **healthy range (18.5-24.9 kg/m²)**, the actual average BMI for Indian women per NFHS-5 is approximately **23-23.5 kg/m²**. - This option is close to the actual average but not precisely accurate for competitive exam purposes. - The increasing trend in BMI reflects rising prevalence of **overweight and obesity** in India. *None of the options* - This option is incorrect because the statement regarding average height (152 cm) is accurate and supported by **NFHS-5 data**. - The correct answer is clearly identifiable among the given options.

Q: What is the Recommended Dietary Allowance (RDA) of vitamin A for adolescent females?

700 mcg. ***700 mcg*** - The **Recommended Dietary Allowance (RDA)** for vitamin A in adolescent females (ages 14-18 years) is **700 micrograms (mcg) per day** of retinol activity equivalents (RAE). - This intake supports normal vision, immune function, reproduction, and cell growth, which are crucial during adolescence. *400 mcg* - This value is significantly below the recommended intake for adolescent females and could lead to **vitamin A deficiency** if consumed consistently. - Insufficient vitamin A can impair vision, immune response, and overall growth and development during this critical life stage. *350 mcg* - This amount is well below the RDA for adolescent females and could contribute to **hypovitaminosis A**. - Symptoms of deficiency might include **night blindness**, increased susceptibility to infections, and impaired growth. *800 mcg* - While closer to the RDA, **800 mcg** is slightly above the recommended intake and not the precise RDA for adolescent females. - While generally safe, excessive vitamin A from supplements can lead to **toxicity**, particularly from preformed vitamin A (retinol).

Q: The average daily dietary nutrient intake level sufficient to meet the nutrient requirements of nearly all (97-98%) healthy individuals in a particular life stage and gender group is known as?

Recommended dietary allowance. ***Recommended dietary allowance*** - This term precisely defines the **average daily dietary nutrient intake level** sufficient to meet the nutrient requirements of **97–98% of healthy individuals** in a particular **life stage and gender group**. - It serves as a goal for individual intake and is derived from the **Estimated Average Requirement (EAR)**. *Adequate intake* - This is established when there is **insufficient scientific evidence** to set an EAR and thus an RDA. - It is a recommended average daily nutrient intake level based on **observed or experimentally determined approximations** or estimates of nutrient intake by a group of healthy people. *Dietary goal* - This is a broader term that refers to **population-level targets** for nutrient intake or food consumption designed to promote overall health and prevent chronic diseases. - It is not specifically defined by meeting the needs of nearly all healthy individuals for a particular nutrient, but rather by **health outcomes**. *Estimated average requirement* - This is the **average daily nutrient intake level** estimated to meet the nutrient requirement of **50% of the healthy individuals** in a particular life stage and gender group. - The RDA is derived from the EAR; specifically, the RDA is typically set approximately **two standard deviations above the EAR** to cover the majority of the population.

Q: In a village, it is observed that several farmers have crossed gait and use a stick for support to stand up and walk. Due to poor yield from farms, they consume meals containing rice and pulses only. Supplementing their diet with which of the following vitamins could have prevented neurological symptoms associated with their condition?

Vitamin B1 (Thiamine). ***Vitamin B1 (Thiamine)*** - The symptoms described, such as **crossed gait** (ataxia) and difficulty standing and walking, are classic signs of **neurological dysfunction**. A diet primarily of **rice and pulses** is often deficient in thiamine, especially in regions where polished rice is a staple. - Deficiency in thiamine leads to **beriberi**, which can manifest as **dry beriberi** (neurological symptoms) or **wet beriberi** (cardiovascular symptoms). *Vitamin A* - Deficiency primarily affects **vision** (e.g., **night blindness**, xerophthalmia) and **immune function**, not gait or neurological coordination in this manner. - While essential for health, its deficiency does not typically present with the described neurological signs. *Vitamin D* - Deficiency primarily affects **bone health**, leading to conditions like **rickets in children** and **osteomalacia in adults**, causing bone pain and muscle weakness, but not typically a crossed gait. - It plays a role in calcium and phosphate metabolism, essential for bone mineralization. *Vitamin C* - Deficiency causes **scurvy**, characterized by **gingival bleeding**, **poor wound healing**, and **petechiae**, due to impaired collagen synthesis. - It does not directly cause the neurological symptoms or gait abnormalities described in the scenario.

Q: According to WHO classification, severe thinness is defined as a BMI below which value?

< 16. ***Correct: < 16 kg/m²*** - The WHO classifies **BMI < 16 kg/m²** as **severe thinness (Grade 3 thinness)** - This represents critically low body weight with significant health risks - Values like 12, 13, 14, or 15 all fall into this severe thinness category *18* - BMI **18.5-24.9 kg/m²** is classified as **normal/healthy weight** by WHO - BMI **17.0-18.49 kg/m²** is classified as **mild thinness (Grade 1)** - 18 is not the threshold for severe thinness *14* - 14 kg/m² is **an example of a value** that falls within severe thinness - However, the question asks for the **threshold/cutoff value**, which is **16 kg/m²** - Any BMI below 16 (including 14, 13, 12) indicates severe thinness *13* - Like option 14, this is **a value within** the severe thinness range - The **defining threshold** is **< 16 kg/m²**, not 13 - The question asks for the classification cutoff, not an example value within the range

Q: What is the Recommended Dietary Allowance (RDA) of iodine in lactation in micrograms?

250. ***250*** - The **Recommended Dietary Allowance (RDA)** for iodine during lactation is set at **250 micrograms (mcg) daily**. - This increased requirement supports both the mother's thyroid hormone production and the infant's iodine needs through breast milk, which is crucial for **neurodevelopment**. *150* - **150 mcg** is the RDA for non-pregnant, non-lactating adult women and men. - This amount is insufficient to meet the additional demands of iodine during lactation. *220* - **220 mcg** is the RDA for iodine during pregnancy. - While higher than for non-pregnant adults, it is still below the recommended intake for lactation due to the greater iodine transfer into breast milk. *100* - **100 mcg** is well below the recommended iodine intake for any adult age group, especially during pregnancy or lactation. - Inadequate iodine intake can lead to **hypothyroidism** in both mother and infant, impacting neurological development.

Question 1

Which of the following is considered an inexpensive source of iron?

Accepted Answer

Jaggery

Answer

Almonds

Answer

Grapes

Answer

Soybeans

Question 2

A 70 kg farmer is consuming 56 grams of protein, 275 grams of carbohydrates, and 60 grams of lipids. How does his caloric intake compare to the estimated daily needs for a moderately active male?

Accepted Answer

Less than the recommended intake

Answer

More than the recommended intake

Answer

Adequate for his needs

Answer

Cannot be determined

Question 3

Most common nutritional problem in India?

Accepted Answer

Iron deficiency anemia

Answer

Low birth weight

Answer

Fluorosis

Answer

Vitamin A deficiency

Question 4

What is the approximate daily iron requirement for a healthy Indian male?

Accepted Answer

17 mg

Answer

10 mg

Answer

35 mg

Answer

5 mg

Question 5

Which of the following is true regarding the average height of Indian women?

Accepted Answer

Average height is 152 cm

Answer

Average weight is 60 kg

Answer

Average BMI is 22

Answer

None of the options

Question 6

What is the Recommended Dietary Allowance (RDA) of vitamin A for adolescent females?

Accepted Answer

700 mcg

Answer

400 mcg

Answer

350 mcg

Answer

800 mcg

Question 7

The average daily dietary nutrient intake level sufficient to meet the nutrient requirements of nearly all (97-98%) healthy individuals in a particular life stage and gender group is known as?

Accepted Answer

Recommended dietary allowance

Answer

Adequate intake

Answer

Dietary goal

Answer

Estimated average requirement

Question 8

In a village, it is observed that several farmers have crossed gait and use a stick for support to stand up and walk. Due to poor yield from farms, they consume meals containing rice and pulses only. Supplementing their diet with which of the following vitamins could have prevented neurological symptoms associated with their condition?

Accepted Answer

Vitamin B1 (Thiamine)

Answer

Vitamin A

Answer

Vitamin D

Answer

Vitamin C

Question 9

According to WHO classification, severe thinness is defined as a BMI below which value?

Accepted Answer

< 16

Answer

18

Answer

14

Answer

13

Question 10

What is the Recommended Dietary Allowance (RDA) of iodine in lactation in micrograms?

Accepted Answer

250

Answer

150

Answer

220

Answer

100

Nutrition and Health — MCQs

Nutrition and Health — MCQs

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