Subjects Nutrition Core Topics Vitamins Nutrition · Core Topics
Vitamins Safety note: Educational content only. No doses, supplement recommendations, laboratory ranges, or deficiency treatments are provided; diagnosis and therapy require clinical evaluation, the care team, pharmacy, and RD. Flag for source/SME review before clinical use.
On this page 3 sections In 30 seconds Quick check Study tools In 30 seconds This topic is taught through its practice: 12 practice questions, each with the reasoning behind the answer, and the same idea again in plain words.
Quick check 5 questions here, of 12 in this lesson’s practice set. Answers stay hidden until you check.
Question 1 of 5 foundational
Which statement best defines a vitamin? A A macronutrient that the body burns to supply most of its daily energy B An inorganic element, such as iron or calcium, that the body uses to build its tissues C An organic compound needed in small amounts for normal metabolism, usually obtained from the diet D A form of dietary fiber that passes through the gut without being digested
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Question 2 of 5 foundational
Vitamins are commonly divided into two main groups based on what property? A Whether they provide energy or not B Whether they come from plants or from animals C Whether they dissolve in fat or in water D Whether they are found in raw or cooked foods
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Question 3 of 5 foundational
Which group correctly lists the four fat-soluble vitamins? A Vitamins A, D, E, and K B Vitamins B6, B12, C, and D C Vitamins A, C, E, and K D Vitamins B1, B2, B3, and C
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Question 4 of 5 intermediate
Why can fat-soluble vitamins build up to toxic levels more easily than water-soluble vitamins? A They are absorbed much faster from the stomach than water-soluble vitamins B They are stored in the liver and fatty tissue rather than being readily excreted in urine C The body converts them into minerals that cannot be broken down D They are chemically stronger and resist digestion in the intestine
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Question 5 of 5 intermediate
Many B vitamins share which primary role in the body? A Carrying oxygen from the lungs to working muscles and other body tissues B Serving as the main structural building blocks of bone and tooth enamel C Acting as coenzymes that help enzymes release energy from digested food D Providing a direct source of calories that muscles burn during contraction
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Previous lesson Dietary Fats and LipidsNext lesson Minerals and ElectrolytesRelated Educational content only. It is not medical, legal or professional advice. Found an error? Tell us.
