1. : Which nutrient is the main source of energy for the body?
(A) Proteins
(B) Carbohydrates
(C) Fats
(D) Vitamins
2. : Which vitamin is essential for blood clotting?
(A) Vitamin A
(B) Vitamin K
(C) Vitamin D
(D) Vitamin B₁₂
3. : The deficiency of iodine causes:
(A) Scurvy
(B) Goiter
(C) Night blindness
(D) Rickets
4. : Which mineral helps in the formation of strong bones and teeth?
(A) Iron
(B) Calcium
(C) Sodium
(D) Zinc
5. : The energy value of food is measured in:
(A) Kilograms
(B) Calories
(C) Joules only
(D) Milliliters
6. : Which vitamin is also known as ascorbic acid?
(A) Vitamin A
(B) Vitamin C
(C) Vitamin E
(D) Vitamin B₂
7. : Proteins are made up of:
(A) Amino acids
(B) Fatty acids
(C) Sugars
(D) Nucleic acids
8. : The main function of hemoglobin is to:
(A) Digest fats
(B) Transport oxygen
(C) Store energy
(D) Produce hormones
9. : Which of the following is a fat-soluble vitamin?
(A) Vitamin C
(B) Vitamin B₁
(C) Vitamin A
(D) Vitamin B₆
10. : Pellagra is caused by the deficiency of:
(A) Niacin
(B) Thiamine
(C) Riboflavin
(D) Biotin
11. : Which nutrient is needed in the largest amount by the human body?
(A) Minerals
(B) Proteins
(C) Water
(D) Vitamins
12. : Iron deficiency in humans leads to:
(A) Anemia
(B) Diabetes
(C) Obesity
(D) Hypertension
13. : Which of the following is a rich source of Vitamin D?
(A) Milk and sunlight
(B) Rice and beans
(C) Apples
(D) Spinach
14. : The main function of carbohydrates in the body is to:
(A) Build muscles
(B) Provide energy
(C) Store minerals
(D) Protect tissues
15. : Night blindness is caused due to deficiency of:
(A) Vitamin A
(B) Vitamin C
(C) Vitamin D
(D) Vitamin B₁₂
16. : Which of the following is a water-soluble vitamin?
(A) Vitamin E
(B) Vitamin B-complex
(C) Vitamin K
(D) Vitamin D
17. : Fats are important because they:
(A) Act as enzymes
(B) Provide concentrated energy
(C) Carry oxygen
(D) Build proteins
18. : Which mineral is essential for red blood cell formation?
(A) Potassium
(B) Iron
(C) Sodium
(D) Phosphorus
19. : Which vitamin prevents scurvy?
(A) Vitamin A
(B) Vitamin C
(C) Vitamin D
(D) Vitamin K
20. : The body stores excess carbohydrates as:
(A) Fat
(B) Glucose
(C) Fiber
(D) Protein
21. : Which nutrient helps in repairing body tissues?
(A) Fats
(B) Proteins
(C) Carbohydrates
(D) Vitamins
22. : Rickets is a disease caused by deficiency of:
(A) Vitamin D
(B) Vitamin C
(C) Vitamin B₂
(D) Vitamin K
23. : The daily requirement of protein for an average adult is approximately:
(A) 10 g
(B) 60 g
(C) 100 g
(D) 120 g
24. : Which of the following nutrients helps in maintaining fluid balance?
(A) Sodium
(B) Calcium
(C) Iron
(D) Zinc
25. : The richest dietary source of carbohydrates is:
(A) Meat
(B) Cereals
(C) Eggs
(D) Fish
26. : Obesity results from:
(A) Vitamin deficiency
(B) Energy intake greater than energy expenditure
(C) Lack of exercise only
(D) Protein deficiency
27. : Which vitamin is synthesized by intestinal bacteria?
(A) Vitamin C
(B) Vitamin K
(C) Vitamin B₁₂
(D) Vitamin D
28. : The main function of dietary fiber is to:
(A) Provide calories
(B) Aid in digestion and bowel movement
(C) Build muscles
(D) Supply minerals
29. : Which of the following foods is a good source of Omega-3 fatty acids?
(A) Fish oil
(B) Butter
(C) Rice bran
(D) Chicken fat
30. : The basal metabolic rate (BMR) depends mainly on:
(A) Age, sex, and body size
(B) Food taste
(C) Sun exposure
(D) Stress only
31. : Which hormone regulates blood glucose levels?
(A) Thyroxine
(B) Insulin
(C) Estrogen
(D) Adrenaline
32. : Excess sodium intake can lead to:
(A) Hypertension
(B) Rickets
(C) Anemia
(D) Scurvy
33. : The deficiency of Vitamin B₁ causes:
(A) Pellagra
(B) Beriberi
(C) Night blindness
(D) Scurvy
34. : What is the main function of Vitamin D?
(A) Maintain healthy skin
(B) Aid calcium absorption
(C) Increase hemoglobin
(D) Prevent infection
35. : Which of the following foods is richest in protein?
(A) Lentils
(B) Apple
(C) Potato
(D) Cucumber
36. : A BMI above 30 indicates:
(A) Underweight
(B) Normal weight
(C) Obesity
(D) Malnutrition
37. : Which nutrient is the body’s last energy reserve?
(A) Carbohydrates
(B) Proteins
(C) Fats
(D) Minerals
38. : Which of the following vitamins helps in calcium absorption?
(A) Vitamin D
(B) Vitamin C
(C) Vitamin K
(D) Vitamin E
39. : Which mineral is necessary for thyroid hormone synthesis?
(A) Zinc
(B) Iodine
(C) Iron
(D) Calcium
40. : A diet deficient in Vitamin C leads to:
(A) Scurvy
(B) Rickets
(C) Goiter
(D) Pellagra
41. : Which vitamin acts as an antioxidant?
(A) Vitamin B₁₂
(B) Vitamin E
(C) Vitamin D
(D) Vitamin K
42. : What is the main function of roughage in diet?
(A) Provides minerals
(B) Prevents constipation
(C) Builds muscle
(D) Increases appetite
43. : Protein-energy malnutrition in children is known as:
(A) Rickets
(B) Kwashiorkor
(C) Goiter
(D) Pellagra
44. : The best natural source of Vitamin C is:
(A) Citrus fruits
(B) Milk
(C) Bread
(D) Eggs
45. : The daily water intake requirement for adults is approximately:
(A) 1 liter
(B) 2–3 liters
(C) 4–5 liters
(D) 6 liters
46. : Which organ stores excess glucose as glycogen?
(A) Kidneys
(B) Liver
(C) Lungs
(D) Heart
47. : Which of the following is not a micronutrient?
(A) Iron
(B) Zinc
(C) Protein
(D) Vitamin C
48. : What is the caloric value of 1 gram of fat?
(A) 4 kcal
(B) 7 kcal
(C) 9 kcal
(D) 2 kcal
49. : Which nutrient deficiency leads to weak immunity?
(A) Vitamin C
(B) Vitamin D
(C) Calcium
(D) Sodium
50. : Balanced diet means:
(A) Eating more protein only
(B) Eating only vegetarian food
(C) Eating all nutrients in correct proportion
(D) Avoiding fats completely