Which of the following is not a characteristic of fat-soluble vitamins?

• A. They are readily excreted in urine.
• B. They require dietary fat for absorption.
• C. They are stored in the body's fatty tissues.
• D. They can accumulate to toxic levels if consumed in excess.

Answer: (A)

Verified step by step guidance

1. Understand the nature of fat-soluble vitamins: Fat-soluble vitamins include vitamins A, D, E, and K. These vitamins are absorbed along with dietary fats and are stored in the body's fatty tissues and liver.
2. Consider the absorption process: Fat-soluble vitamins require the presence of dietary fat for proper absorption in the intestines. This is a key characteristic that differentiates them from water-soluble vitamins.
3. Evaluate storage and excretion: Unlike water-soluble vitamins, which are not stored in the body and are excreted in urine, fat-soluble vitamins are stored in the body's fatty tissues. This means they are not readily excreted in urine.
4. Assess the potential for toxicity: Because fat-soluble vitamins are stored in the body, they can accumulate to toxic levels if consumed in excess. This is a significant risk associated with these vitamins.
5. Identify the incorrect characteristic: Based on the understanding of fat-soluble vitamins, the statement 'They are readily excreted in urine' is incorrect, as fat-soluble vitamins are stored in the body rather than being excreted quickly.