The 15 quiz questions
Question 1 : Scurvy is caused by a deficiency in which vitamin?
Possible answers:
- Vitamin B
- Vitamin A
- Vitamin D
- Vitamin C
Explanation: Scurvy is caused by a lack of vitamin C. This disease was common among sailors who lacked fresh fruit.
Question 2 : Which type of fat is considered beneficial for cardiovascular health?
Possible answers:
- Unsaturated fats
- Saturated fats
- Trans fats
- Hydrogenated fats
Explanation: Unsaturated fats (mono and polyunsaturated), found in olive oil, nuts, and oily fish, help reduce bad cholesterol (LDL) and protect the heart.
Question 3 : What disease does iron deficiency cause?
Possible answers:
- Anémie
- Scorbut
- Ostéoporose
- Diabète
Explanation: Iron-deficiency anemia is caused by a lack of iron, leading to fatigue, shortness of breath, and pallor.
Question 4 : What does the glycemic index (GI) of a food measure?
Possible answers:
- How quickly it raises blood sugar
- The calorie count
- The vitamin content
- The food's weight
Explanation: The glycemic index measures how quickly a food raises blood sugar levels. A low GI (< 55) causes a slow, sustained rise, while a high GI (> 70) causes a rapid spike followed by a crash.
Question 5 : Which nutrient provides the most energy per gram?
Possible answers:
- Vitamines
- Lipides
- Glucides
- Protéines
Explanation: Lipids (fats) provide 9 calories per gram, compared to 4 for proteins and carbohydrates.
Question 6 : Which fruit is particularly rich in vitamin C?
Possible answers:
- Orange
- Raisin
- Banane
- Pomme
Explanation: Oranges are famous for their vitamin C content (about 50mg per 100g), a powerful antioxidant that strengthens the immune system. Kiwis and red peppers contain even more!
Question 7 : Proteins are essential for:
Possible answers:
- La mémoire
- Le bronzage
- Muscle building
- La vision nocturne
Explanation: Proteins are the building blocks of the body: muscles, bones, skin, hair. They are made of amino acids, 8 of which are essential.
Question 8 : Carbohydrates are the main source of:
Possible answers:
- Énergie
- Vitamines
- Minéraux
- Protéines
Explanation: Carbohydrates (sugars) are converted to glucose, the main fuel for the brain and muscles. There are simple (fast) and complex (slow) carbohydrates.
Question 9 : How many portions of fruits and vegetables are recommended per day?
Possible answers:
- 2
- 3
- 4
- 5
Explanation: The famous "5 fruits and vegetables a day" means 5 portions of 80-100g. The WHO recommends at least 400g to reduce disease risk.
Question 10 : Which type of fish is richest in omega-3?
Possible answers:
- Cabillaud
- Merlan
- Saumon
- Sole
Explanation: Fatty fish (salmon, mackerel, sardine) are rich in omega-3, beneficial for the heart and brain. It is recommended to eat them twice a week.
Question 11 : Calcium is mainly necessary for:
Possible answers:
- Digestion
- Bones and teeth
- Breathing
- The nervous system
Explanation: Calcium is essential for bones and teeth. 99% of the body's calcium is found there. Dairy products, but also cabbage and almonds contain it.
Question 12 : How much water is generally recommended per day for an adult?
Possible answers:
- 0.5 liter
- 1.5 to 2 liters
- 4 liters
- 5 liters
Explanation: About 1.5 to 2 liters of water per day is recommended, more during heat or physical activity. Water represents 60% of human body weight.
Question 13 : Dietary fiber mainly promotes:
Possible answers:
- Digestion
- Vision
- Smell
- Hearing
Explanation: Fiber (fruits, vegetables, whole grains) facilitates intestinal transit and provides a feeling of fullness. 25-30g per day is recommended.
Question 14 : Which food is an excellent source of iron?
Possible answers:
- Milk
- Red meat
- White bread
- Rice
Explanation: Red meat (beef, lamb) is rich in heme iron, which is better absorbed than plant iron. Lentils and spinach also contain it but in a less bioavailable form.
Question 15 : What is the WHO recommended daily limit for added sugars?
Possible answers:
- 10g
- 15g
- 20g
- 25g
Explanation: The WHO recommends limiting added sugars to 25g per day (about 6 teaspoons), less than 10% of total energy intake.




