Macronutrients
What are the three main macronutrients the body needs?
Carbohydrates, fats, proteins
Which macronutrient is most important for muscle repair and growth?
Protein
True or False: Fibre is classified as a macronutrient because it provides the body with energy.
False
Why is nutrition especially important for teenagers?
A. Their bodies are still growing and developing
B. They need energy for study, sport, and growth
C. Good nutrition helps build healthy habits for life
D. All of the above
D. All of the above
Which macronutrient is the body’s primary source of energy?
Carbohydrates
True or False: Fats are unhealthy and should be completely avoided.
False
Which macronutrient is broken down into amino acids during digestion?
Proteins
Give one example of a food that contains all three macronutrients.
Peanut butter sandwich, pizza, yogurt with fruit
Which of the following foods is a complex carbohydrate?
A. White sugar
B. Apple juice
C. Brown rice
D. Soft drink
C. Brown Rice
Which of the following is a source of healthy unsaturated fat?
A. Butter
B. Avocado
C. Sausage
D. Cheese
B. Avocado
Macronutrients are nutrients that the body needs in ________ amounts to function properly.
Large
What type of macronutrient should an endurance athlete focus on before a long race, and why?
Carbohydrates — to maximise glycogen stores for sustained energy
Approximately how many kilojoules (kJ) does 1 gram of protein provide?
A. 4 kJ
B. 17 kJ
C. 37 kJ
D. 16 kJ
B. 17
What happens when we eat more carbohydrates than the body needs for energy?
They are converted to fat and stored
Match each macronutrient with its function:
a. Carbohydrate
b. Protein
c. Fat
Growth and repair of tissues
Long-term energy and insulation
Immediate source of energy
a–3, b–1, c–2
Name one health consequence of not consuming enough protein in the diet.
Muscle loss, fatigue, weakened immune system, poor recovery
Name three food sources that are high in protein.
Chicken, eggs, tofu, lentils, fish
Which macronutrient can be used for energy when carbohydrate stores are low?
A. Fat
B. Protein
C. Both A and B
D. Neither
C. Both A and B
What type of carbohydrate provides quick bursts of energy but little nutritional value?
Simple Carbohydrate
Explain why it is important to have a balanced intake of all three macronutrients.
Each macronutrient has a unique role—energy, growth, repair, and body function—so a balanced intake supports overall health and performance.