Vitamin B12 In Nutrition: Importance, Sources, Benefits, And Deficiency Symptoms

Time for reading: ~1 minutes Last Updated: September 16, 2025


Learn about the importance of vitamin B12 in nutrition, sources of vitamin B12, benefits, deficiency symptoms, and recommended daily intake.

The Importance of Vitamin B12 in Nutrition

Vitamin B12, also known as cobalamin, is a crucial nutrient that plays a key role in maintaining the health of nerve cells and aiding in the production of DNA. It is essential for the formation of red blood cells and proper functioning of the brain and nervous system.

Sources of Vitamin B12

Vitamin B12 is primarily found in animal products such as meat, fish, eggs, and dairy products. For vegetarians and vegans, fortified foods and supplements are essential sources of this important nutrient.

Benefits of Vitamin B12

Consuming an adequate amount of vitamin B12 can help prevent anemia, support cognitive function, and boost energy levels. It also plays a role in maintaining healthy hair, skin, and nails.

Deficiency Symptoms

A deficiency in vitamin B12 can lead to fatigue, weakness, numbness or tingling in the hands and feet, and even neurological problems. It is important to ensure you are meeting your daily requirements through diet or supplementation.

The recommended daily intake of vitamin B12 for adults is 2.4 micrograms. Pregnant and breastfeeding women may require higher amounts. It is important to consult with a healthcare provider to determine the appropriate dosage for your individual needs.

About | Privacy | Marketing | Cookies | Contact us

All rights reserved © ThisNutrition 2018-2026

Medical Disclaimer: All content on this Web site, including medical opinion and any other health-related information, is for informational purposes only and should not be considered to be a specific diagnosis or treatment plan for any individual situation. Use of this site and the information contained herein does not create a doctor-patient relationship. Always seek the direct advice of your own doctor in connection with any questions or issues you may have regarding your own health or the health of others.

Affiliate Disclosure: Please note that each post may contain affiliate and/or referral links, in which I receive a very small commission for referring readers to these companies.