Pharmacological and Parenteral TherapiesQuestion 831 of 2368

A client takes large doses of vitamin supplements. Which vitamins carry the greatest risk of toxicity because they are stored in body fat?

  1. Vitamin B12 and folic acid
  2. Thiamine and riboflavin
  3. Biotin and pantothenic acid
  4. Vitamins A and D
Show answer

Correct answer: Vitamins A and D

Fat-soluble vitamins build up in fat tissue and the liver. Overconsumption causes toxicity, especially with vitamins A and D.

Source: Nursing Health Promotion (Open RN, Chippewa Valley Technical College, 2025), Healthy Diets: Essential Nutrients. Licensed under CC BY 4.0.

Practice the topic "Pharmacological and Parenteral Therapies"

Questions last reviewed: 18 October 2026