Vitamin B12

Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays a crucial role in the functioning of the brain and nervous system, as well as the formation of red blood cells.

Sources of Vitamin B12

Vitamin B12 is naturally found in animal products, including meat, fish, poultry, eggs, and dairy products. It is not found in plant foods, so vegetarians and vegans may need to rely on fortified foods or supplements to meet their B12 needs.

Functions of Vitamin B12

Vitamin B12 is essential for several important functions in the body, including:

• Formation of red blood cells
• Maintenance of the central nervous system
• Conversion of food into energy
• Synthesis of DNA

Deficiency Symptoms

A deficiency in vitamin B12 can lead to a variety of health problems, including:

• Anemia
• Nerve damage
• Weakness and fatigue
• Cognitive difficulties

Study Guide

To understand and remember the key points about vitamin B12, consider the following study guide:

1. What are the sources of vitamin B12, and how does it affect individuals with different dietary habits?
2. Describe the functions of vitamin B12 in the body and the consequences of its deficiency.
3. Explain the process of absorption and metabolism of vitamin B12 in the human body.
4. Discuss the importance of vitamin B12 for specific groups, such as pregnant women, older adults, and vegetarians/vegans.
5. Compare and contrast the symptoms of vitamin B12 deficiency with those of other nutritional deficiencies.
6. Research and present a case study highlighting the impact of vitamin B12 deficiency on an individual's health and well-being.