Fat-soluble vitamins

Definition

Fat-soluble vitamins are vitamins that dissolve in fats and oils and can be stored in the body's fatty tissue. They include vitamins A, D, E, and K.

5 Must Know Facts For Your Next Test

1. Fat-soluble vitamins require dietary fat for their absorption in the intestine.
2. These vitamins can be stored in the liver and adipose (fat) tissue for later use.
3. Vitamin A is crucial for vision, immune function, and reproduction.
4. Vitamin D helps with calcium absorption and bone health.
5. Excess intake of fat-soluble vitamins can lead to toxicity because they are not easily excreted from the body.

Review Questions

• What are the four fat-soluble vitamins?
• Why do fat-soluble vitamins require dietary fat for absorption?
• What potential risk is associated with consuming high amounts of fat-soluble vitamins?

Related terms

Water-Soluble Vitamins: Vitamins that dissolve in water and need to be consumed more regularly as they are not stored in the body.

Micronutrients: Essential nutrients required by the body in small amounts for proper functioning.

Macronutrients: Nutrients required by the body in large amounts, including carbohydrates, proteins, and fats.