WAEC Food and Nutrition Past Questions And Answers (Objective and Theory)
Section A: Multiple Choice Questions (MCQs)
Which macronutrient provides the highest amount of energy per gram?
a) Protein
b) Carbohydrates
c) Fat
d) Fiber
Answer: c) Fat
What is the primary function of carbohydrates in the body?
a) Energy source
b) Muscle building
c) Immune support
d) Bone strength
Answer: a) Energy source
Which vitamin is essential for calcium absorption and bone health?
a) Vitamin C
b) Vitamin D
c) Vitamin A
d) Vitamin K
Answer: b) Vitamin D
Which of the following minerals is crucial for nerve function and muscle contraction?
a) Iron
b) Magnesium
c) Zinc
d) Iodine
Answer: b) Magnesium
What is the recommended daily water intake for the average adult?
a) 1 liter
b) 2 liters
c) 3 liters
d) 4 liters
Answer: b) 2 liters
Which type of fat is generally considered healthier and is found in olive oil and avocados?
a) Saturated fat
b) Trans fat
c) Monounsaturated fat
d) Polyunsaturated fat
Answer: c) Monounsaturated fat
What nutrient is crucial for the formation of red blood cells and oxygen transport in the body?
a) Vitamin C
b) Folate (Vitamin B9)
c) Vitamin A
d) Vitamin K
Answer: b) Folate (Vitamin B9)
Which food is an excellent source of omega-3 fatty acids?
a) Beef
b) Salmon
c) Eggs
d) Chicken
Answer: b) Salmon
What is the primary function of dietary fiber in the digestive system?
a) Energy storage
b) Muscle building
c) Digestive regularity
d) Immune support
Answer: c) Digestive regularity
Which of the following is a complete protein source, containing all essential amino acids?
a) Lentils
b) Quinoa
c) Rice
d) Pasta
Answer: b) Quinoa
What is the role of antioxidants in the body?
a) Promote inflammation
b) Fight oxidative stress
c) Enhance cholesterol levels
d) Increase blood pressure
Answer: b) Fight oxidative stress
Which mineral is essential for the formation of thyroid hormones?
a) Iron
b) Zinc
c) Iodine
d) Calcium
Answer: c) Iodine
Which fruit is known for its high vitamin C content?
a) Banana
b) Orange
c) Apple
d) Grapes
Answer: b) Orange
What is the main function of the pancreas in digestion?
a) Producing bile
b) Storing nutrients
c) Regulating blood sugar
d) Producing digestive enzymes
Answer: d) Producing digestive enzymes
Which of the following is a rich source of calcium for bone health?
a) Spinach
b) Almonds
c) Milk
d) Salmon
Answer: c) Milk
Section B: Theory Questions
Explain the importance of a balanced diet in maintaining overall health.
Answer: A balanced diet provides the necessary nutrients, vitamins, and minerals needed for bodily functions, energy production, and disease prevention. It supports proper growth, development, and maintains optimal health.
Describe the impact of excessive sugar consumption on health and suggest ways to reduce sugar intake.
Answer: Excessive sugar intake is linked to obesity, diabetes, and cardiovascular issues. To reduce sugar intake, limit processed foods, choose natural sweeteners, and be mindful of hidden sugars in beverages and snacks.
Discuss the role of hydration in promoting good health and provide tips for staying adequately hydrated.
Answer: Hydration is crucial for digestion, temperature regulation, and nutrient transport. To stay hydrated, drink sufficient water throughout the day, consume water-rich foods, and adjust intake based on activity levels and climate.
Explain the concept of “good” and “bad” cholesterol, and how dietary choices can impact cholesterol levels.
Answer: HDL is “good” cholesterol, while LDL is “bad.” Healthy fats, exercise, and a balanced diet contribute to higher HDL and lower LDL, reducing the risk of cardiovascular diseases.
Discuss the importance of protein in muscle building and repair, and provide examples of good protein sources.
Answer: Proteins are essential for muscle building and repair. Good sources include lean meats, poultry, fish, beans, and dairy products. A balanced diet ensures an adequate protein intake for overall health.
