50 Food & Nutrition Quiz Questions & Answers

Below are 50 food & nutrition quiz questions with the correct answer and a short explanation for each. Use them to revise, host a quiz night, or prepare for competitions — then challenge yourself with the timed, interactive version on QuizOxa.

Food & Nutrition Quiz Questions and Answers

Q1. Which vitamin is heavily found in citrus fruits like oranges?

✅ Answer: Vitamin C

💡 Citrus fruits are famous sources of Vitamin C (ascorbic acid), which supports immune function and skin health.

Q2. What is the main source of energy for the human body?

✅ Answer: Carbohydrates

💡 Carbohydrates are broken down into glucose, which is the body's primary and most efficient energy source.

Q3. Which country is credited with inventing pizza?

✅ Answer: Italy

💡 Modern pizza originated in Naples, Italy, in the 18th/19th century as a simple flatbread with tomatoes and cheese.

Q4. What is the most consumed beverage in the world after water?

✅ Answer: Tea

💡 Tea is the second most consumed beverage globally.

Q5. What mineral is crucial for healthy bones and teeth?

✅ Answer: Calcium

💡 Calcium is the mineral stored in bones and teeth, essential for their structural strength and density.

Q6. Which nutrient helps build and repair body tissues?

✅ Answer: Protein

💡 Proteins, made of amino acids, are the fundamental building blocks used for tissue growth and repair.

Q7. What is the spiciest chili pepper in the world according to Guinness World Records?

✅ Answer: Pepper X

💡 Pepper X is officially the world's spiciest chili pepper, measuring an average of 2.69 million Scoville Heat Units.

Q8. What gas is produced during bread baking that makes the dough rise?

✅ Answer: Carbon Dioxide

💡 Yeast feeds on sugars in dough, fermenting them to produce Carbon Dioxide gas, which gets trapped and makes the dough rise.

Q9. What type of food is tofu made from?

✅ Answer: Soybeans

💡 Tofu is bean curd made by coagulating soy milk and pressing the resulting curds into soft white blocks.

Q10. Which country is the largest producer of bananas in the world?

✅ Answer: India

💡 India is the world's leading producer of bananas, accounting for approximately 25% of global output.

Q11. Which vitamin does the human body produce when exposed to sunlight?

✅ Answer: Vitamin D

💡 The skin produces Vitamin D when exposed to sunlight (UVB rays), which is essential for calcium absorption and bone health.

Q12. Which nutrient group includes bread, rice, and pasta?

✅ Answer: Carbohydrates

💡 Bread, rice, and pasta are rich in carbohydrates, the body's main source of energy.

Q13. What is the process of the body breaking down food into energy called?

✅ Answer: Metabolism

💡 Metabolism refers to all chemical processes that convert food into energy and building blocks for the body.

Q14. Which mineral in the blood helps carry oxygen?

✅ Answer: Iron

💡 Iron is a key component of hemoglobin in red blood cells, which carries oxygen throughout the body.

Q15. Which food is a rich source of protein for vegetarians?

✅ Answer: Lentils

💡 Lentils (dal) are an excellent plant-based protein source, along with beans, chickpeas, and tofu.

Q16. What is fiber important for?

✅ Answer: Healthy digestion

💡 Dietary fiber aids digestion, prevents constipation, and helps maintain healthy bowel function. It is found in fruits, vegetables, and whole grains.

Q17. Which of these is a healthy unsaturated fat?

✅ Answer: Olive oil

💡 Olive oil contains healthy unsaturated fats that are good for heart health, unlike saturated fats found in butter and lard.

Q18. What is the recommended daily water intake for an average adult?

✅ Answer: About 2-3 litres

💡 Health experts generally recommend about 2-3 litres of water per day for adults, though needs vary by activity and climate.

Q19. Which vitamin deficiency causes scurvy?

✅ Answer: Vitamin C

💡 Scurvy is caused by a deficiency of Vitamin C, leading to fatigue, gum disease, and poor wound healing.

Q20. What does 'calorie' measure in food?

✅ Answer: Energy

💡 A calorie is a unit that measures the amount of energy food provides to the body.

Q21. Which fruit is known for being rich in potassium?

✅ Answer: Banana

💡 Bananas are well known for being high in potassium, an electrolyte important for heart and muscle function.

Q22. What is the main nutrient found in eggs?

✅ Answer: Protein

💡 Eggs are an excellent source of high-quality protein, along with vitamins and healthy fats.

Q23. Which food group should make up the largest part of a balanced plate?

✅ Answer: Fruits and vegetables

💡 Nutrition guidelines recommend that fruits and vegetables make up a large portion of a balanced, healthy plate.

Q24. What is 'BMI' used to estimate?

✅ Answer: Body weight relative to height

💡 BMI (Body Mass Index) estimates whether a person's weight is healthy relative to their height.

Q25. Which drink is highest in caffeine?

✅ Answer: Black coffee

💡 Black coffee generally contains more caffeine than tea, and far more than juice or milk.

Q26. Which nutrient is often called 'empty calories' when consumed in excess?

✅ Answer: Added sugar

💡 Added sugar provides energy but little nutritional value, which is why it is often called 'empty calories'.

Q27. What is a probiotic?

✅ Answer: Beneficial bacteria that support gut health

💡 Probiotics are beneficial live bacteria (found in yogurt and fermented foods) that support a healthy digestive system.

Q28. Which cooking method is generally healthiest?

✅ Answer: Steaming

💡 Steaming preserves nutrients and adds no extra fat, making it one of the healthiest cooking methods.

Q29. Which vitamin is important for good eyesight?

✅ Answer: Vitamin A

💡 Vitamin A is essential for good vision, especially in low light, and is found in carrots and leafy greens.

Q30. What is the main ingredient in traditional hummus?

✅ Answer: Chickpeas

💡 Hummus is made primarily from chickpeas, blended with tahini, olive oil, lemon, and garlic.

Q31. Which spice is derived from the Crocus flower and is very expensive?

✅ Answer: Saffron

💡 Saffron, harvested by hand from crocus flowers, is one of the world's most expensive spices by weight.

Q32. What type of diet excludes all animal products?

✅ Answer: Vegan

💡 A vegan diet excludes all animal products, including meat, dairy, eggs, and honey.

Q33. Which nutrient helps blood clot properly?

✅ Answer: Vitamin K

💡 Vitamin K plays a crucial role in blood clotting and is found in leafy green vegetables.

Q34. What is the primary sugar found in milk?

✅ Answer: Lactose

💡 Lactose is the natural sugar found in milk; people who are lactose intolerant have difficulty digesting it.

Q35. Which grain is naturally gluten-free?

✅ Answer: Rice

💡 Rice is naturally gluten-free, unlike wheat, barley, and rye, which contain gluten.

Q36. What is the recommended way to reduce salt in the diet?

✅ Answer: Cook fresh meals and limit packaged snacks

💡 Cooking fresh meals and limiting processed and packaged foods (which are high in sodium) helps reduce salt intake.

Q37. Which food is a rich source of omega-3 fatty acids?

✅ Answer: Salmon

💡 Fatty fish like salmon are rich in omega-3 fatty acids, which support heart and brain health.

Q38. What is 'metabolic rate'?

✅ Answer: The rate at which the body burns energy

💡 Metabolic rate is the speed at which the body converts food into energy; it varies by age, muscle mass, and activity.

Q39. Which vitamin is mainly obtained from animal products and is important for nerves and blood?

✅ Answer: Vitamin B12

💡 Vitamin B12, found mainly in animal products, is essential for nerve function and red blood cell formation; vegans often need supplements.

Q40. What does 'organic food' generally mean?

✅ Answer: Food grown without synthetic pesticides or fertilizers

💡 Organic food is produced without synthetic pesticides, fertilizers, or genetically modified organisms, following certified standards.

Q41. Which nutrient is the most calorie-dense per gram?

✅ Answer: Fat

💡 Fat provides about 9 calories per gram, more than double that of protein or carbohydrate (about 4 calories per gram each).

Q42. What is a common food source of calcium?

✅ Answer: Milk and dairy products

💡 Milk and dairy products are rich in calcium, essential for strong bones and teeth.

Q43. Which of these is a whole grain?

✅ Answer: Brown rice

💡 Brown rice is a whole grain, retaining the bran and germ, which provide more fiber and nutrients than refined grains.

Q44. What is the main benefit of antioxidants found in fruits and vegetables?

✅ Answer: They help protect cells from damage

💡 Antioxidants help neutralize free radicals, protecting the body's cells from damage linked to aging and disease.

Q45. Which vitamin is important for a strong immune system and healing?

✅ Answer: Vitamin C

💡 Vitamin C supports the immune system, wound healing, and the absorption of iron, and is found in citrus fruits and peppers.

Q46. What is the healthiest way to include fruit in your diet?

✅ Answer: Eating whole fresh fruit

💡 Whole fresh fruit provides fiber, vitamins, and water, unlike sugary fruit drinks that lack fiber and add sugar.

Q47. Which food is highest in healthy fiber?

✅ Answer: Beans and legumes

💡 Beans and legumes are excellent sources of dietary fiber, supporting digestion and heart health.

Q48. What does 'balanced diet' mean?

✅ Answer: Eating the right variety and amounts of all nutrients

💡 A balanced diet includes the right proportions of carbohydrates, proteins, fats, vitamins, minerals, and water for good health.

Q49. Which mineral helps regulate fluid balance but is harmful in excess?

✅ Answer: Sodium (salt)

💡 Sodium helps regulate fluid balance, but too much salt is linked to high blood pressure and heart disease.

Q50. What is the best drink for staying hydrated?

✅ Answer: Water

💡 Water is the best and healthiest choice for hydration, with no added sugar or calories.

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