Vitamin C

Definition

Vitamin C, also known as ascorbic acid, is a water-soluble vitamin essential for the growth and repair of tissues in all parts of the body. It acts as an antioxidant and plays a crucial role in collagen synthesis, immune function, and absorption of iron from plant-based foods.

5 Must Know Facts For Your Next Test

1. Vitamin C is vital for collagen production, which helps maintain healthy skin, blood vessels, bones, and cartilage.
2. A deficiency in vitamin C can lead to scurvy, characterized by symptoms such as anemia, bleeding gums, bruising, and poor wound healing.
3. Vitamin C enhances the immune system by supporting various cellular functions of both the innate and adaptive immune systems.
4. It aids in the absorption of non-heme iron (found in plant-based foods), preventing iron-deficiency anemia.
5. During periods of stress or infection, the body's need for vitamin C increases due to its role in counteracting oxidative stress.

Review Questions

• What are the primary roles of vitamin C in the body?
• How does vitamin C deficiency manifest clinically?
• Why is vitamin C important for individuals with increased oxidative stress?

Related terms

Collagen: A protein that provides structure to skin, bones, tendons, and ligaments; its synthesis depends on adequate levels of vitamin C.

Antioxidant: A substance that inhibits oxidation and combats free radicals in the body; vitamin C is an example.

Iron-Deficiency Anemia: A condition characterized by a lack of healthy red blood cells due to insufficient iron; vitamin C improves non-heme iron absorption.