Food Quiz: 15 Nutrition Questions
Vitamins, minerals, macronutrients and digestion: food is a real science! Do you truly know what happens on your plate and inside your body?
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Frequently asked questions: Food & Nutrition
Here's a preview of what awaits you in this food & nutrition quiz: 15 multiple choice questions, each with a detailed explanation so you can learn while you play. Here are a few example questions (and their answers, so no peeking before you play!).
Which vitamin is mainly produced by the skin when exposed to sunlight?
Answer: Vitamin D. Vitamin D is synthesised by the skin under the action of the sun's ultraviolet B (UVB) rays. It is essential for calcium absorption and bone health.
In which part of the digestive tract are most nutrients absorbed?
Answer: The small intestine. The small intestine is the main site of nutrient absorption. Its villi and microvilli create an absorption surface of about 250 m², allowing nutrients to pass into the blood.
Which nutrient is the brain's preferred source of energy?
Answer: Glucose. The brain mainly uses glucose as its energy source. It consumes about 120 g of glucose a day, around 20% of the body's total energy, even though it makes up only 2% of body mass.
What is the difference between a food intolerance and a food allergy?
Answer: An intolerance is digestive, an allergy involves the immune system. A food intolerance causes digestive problems (bloating, diarrhoea) without involving the immune system. A food allergy triggers an immune reaction that can go as far as anaphylactic shock, which can be fatal.
What is the glycaemic index of a food?
Answer: The speed at which a food raises blood sugar. The glycaemic index (GI) measures how quickly a carbohydrate-containing food raises blood sugar levels. A high GI (white bread, sugar) causes a rapid spike in blood sugar, while a low GI (lentils, wholegrain cereals) ensures a gradual release.
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