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Difficulty: MediumHealth, Nutrition, and Disease

Unlike fat-soluble vitamins, excess water-soluble vitamins consumed in the diet are not stored in significant amounts in adipose tissue and are primarily excreted through the urinary system.

Answer: Answer

Answer

True
The statement is true because water-soluble vitamins (vitamin C and all B-complex vitamins) dissolve in water and do not accumulate in significant quantities in body fat. Excess amounts beyond daily metabolic needs are filtered by the kidneys and excreted in urine.

Step-by-Step Solution

1
Identify the distinct categories of dietary vitamins and their physiological storage properties.
Vitamins are classified into fat-soluble vitamins (A, D, E, and K) and water-soluble vitamins (vitamin C and the B-complex vitamins).
Chemical solubility directly dictates how the human body absorbs, transports, stores, and eliminates each micronutrient.
2
Analyze how the body processes excess quantities of water-soluble vitamins.
Because water-soluble vitamins dissolve in aqueous solutions, the body cannot accumulate large reserves in adipose tissue or the liver.
The renal system continuously filters blood plasma, routing surplus water-soluble compounds into the urine for excretion.
3
Evaluate the accuracy of the statement based on physiological excretion mechanisms.
The statement correctly asserts that water-soluble vitamins lack long-term adipose storage and are primarily eliminated by the kidneys.
Fat-soluble vitamins are stored in lipid reserves, whereas water-soluble vitamins are excreted in urine when consumed in excess.

Key Concept

Vitamin Solubility, Metabolic Storage, and Renal Excretion
Estimated Time:45s
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Topics

Health, Nutrition, and Disease

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