Vitamin B12: Importance, Sources, Benefits, Deficiency, And Daily Intake

Time for reading: ~0 minutes Last Updated: September 16, 2025


Learn about the importance of vitamin B12 in nutrition, sources of vitamin B12, health 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 various bodily functions. It is essential for the formation of red blood cells, DNA synthesis, and proper nerve function.

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 available to ensure adequate intake of this important vitamin.

Health Benefits of Vitamin B12

Vitamin B12 is known to support energy production, improve mood, and promote healthy skin, hair, and nails. It also plays a role in preventing anemia and supporting brain health.

Deficiency Symptoms

A deficiency in vitamin B12 can lead to fatigue, weakness, numbness or tingling in the hands and feet, memory problems, and even neurological issues. It is important to ensure sufficient intake of this vitamin to prevent these symptoms.

The recommended daily intake of vitamin B12 varies by age and life stage. For adults, the recommended amount is 2.4 micrograms per day. Pregnant and breastfeeding women may require higher doses to support their increased 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.