Vitamin Quiz
Questions: 16 · 10 minutes
1. Which set contains only fat-soluble vitamins?
Vitamins B6, B12, C, and D
Vitamins E, K, B12, and C
Vitamins A, C, D, and folate
Vitamins A, D, E, and K
2. What is one of vitamin D’s principal roles in the body?
Forming collagen in connective tissue
Acting as the main vitamin required for blood clotting
Providing calories for immediate energy
Supporting calcium absorption and bone mineralization
3. Which vitamin is essential for normal vision in dim light?
Vitamin E
Vitamin B1
Vitamin A
Vitamin K
4. Someone following a fully vegan diet wants a dependable source of vitamin B12. Which approach is most reliable?
Relying on mushrooms exposed to ultraviolet light
Regularly using B12-fortified foods or an appropriate B12 supplement
Using spirulina without checking its B12 form
Eating fermented vegetables as the sole source
5. Under suitable conditions, the human body can produce which vitamin when skin is exposed to ultraviolet B radiation?
Vitamin B12
Vitamin D
Vitamin E
Vitamin K
6. Which vitamin is required to make several proteins involved in normal blood clotting?
Vitamin B2
Vitamin C
Vitamin K
Vitamin E
7. A person taking warfarin wants to start eating much larger amounts of leafy green vegetables. What is the most appropriate vitamin-related step?
Discuss the planned vitamin K intake change with the prescribing clinician
Take extra vitamin C to cancel out the change
Avoid every food containing vitamin K from now on
Add a vitamin A supplement before changing the diet
8. A person combines a multivitamin, cod liver oil, and another supplement. Which listed vitamin deserves particular attention because excessive preformed amounts can accumulate and cause toxicity?
Vitamin C
Vitamin A
Folate
Thiamin
9. A food label says B vitamins “support energy metabolism.” What does that mean most accurately?
They help the body process energy-yielding nutrients but do not supply calories themselves
They act as stimulants that always make a person feel more alert
They can replace carbohydrates, fats, and proteins as fuel
They store extra dietary energy directly in muscle tissue
10. Bleeding gums and poor wound healing in a person who eats almost no fruit or vegetables are classically associated with deficiency of which vitamin?
Vitamin K
Vitamin B12
Vitamin D
Vitamin C
11. Pellagra is classically caused by a severe deficiency of which vitamin?
Thiamin, or vitamin B1
Pyridoxine, or vitamin B6
Niacin, or vitamin B3
Cobalamin, or vitamin B12
12. Milk left in a clear container under strong light can lose meaningful amounts of which light-sensitive vitamin?
Vitamin B12
Vitamin K
Riboflavin, or vitamin B2
Vitamin D
13. Which vitamin is especially important before and during early pregnancy because adequate intake helps reduce the risk of neural tube defects?
Folate or folic acid
Vitamin D
Niacin
Vitamin E
14. Which of these essential nutrients is a mineral rather than a vitamin?
Folate
Iron
Ascorbic acid
Riboflavin
15. Which addition to a lentil meal can improve absorption of its non-heme iron?
Extra vitamin B12 added to the lentils
A large calcium supplement taken with the meal
Black tea served with the meal
Vitamin C-rich bell peppers
16. Which method generally helps retain more water-soluble vitamins when cooking vegetables?
Steaming them briefly until just tender
Boiling them in plenty of water and discarding the liquid
Chopping them finely and soaking them before cooking
Cooking them for a long time at high heat