What Are The Health Benefits Of Vitamin B12?

Arta Hanssen

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What Are The Health Benefits Of Vitamin B12?

Vitamin B12, a pivotal nutrient, wields significant influence over our bodies. Not produced naturally within the human body, it necessitates external sources, predominantly animal-based foods, for its supply. Nevertheless, certain plant-based foods also offer this essential vitamin, making it imperative for vegans to meticulously plan their diets to evade any deficiency.

Essential Roles of Vitamin B12

Vitamin B12 is renowned for its crucial role in numerous bodily functions, particularly DNA synthesis and the genesis of red blood cells. Its absence can wreak havoc on our health, leading to a spectrum of disorders and discomforts.

Recommended Daily Intake

For an average adult, health experts suggest a daily intake of 2.4 mcg of vitamin B12. However, this quota escalates for those who are pregnant or lactating, to ensure optimal health for both mother and child.

Major Health Benefits of Vitamin B12

Embarking on a journey through the health benefits of vitamin B12 reveals its importance in preventive healthcare and overall wellness.

Prevention of Major Birth Defects

Vitamin B12’s role becomes profoundly significant during pregnancy. Adequate levels are paramount in safeguarding against neurological defects in the newborn. Alarmingly, a deficiency can precipitate complications such as premature birth or, worse, miscarriages.

Red Blood Cell Formation

An unsung hero in hematopoiesis, vitamin B12 is indispensable for proper red blood cell development. A deficit can lead to malformed cells, resulting in megaloblastic anemia, a condition marked by fatigue and weakness.

Combatting Macular Degeneration

Your eyesight could be at stake if vitamin B12 levels fall below par! It’s pivotal in warding off macular degeneration, a serious condition that can impair vision, particularly in older adults.

Osteoporosis Prevention

Vitamin B12 stands as a bulwark against bone density depletion. Individuals deficient in B12 often suffer from reduced bone mineral density, making them susceptible to fractures.

Depression Symptom Improvement

Battling the blues? Vitamin B12 might be an ally you need. It’s implicated in the synthesis and metabolism of serotonin, a neurotransmitter with a significant role in mood regulation.

Energy Boosting Effects

Feeling lethargic? It could be a cry for help from your body for more vitamin B12. Known to boost energy, B12 supplements have been the go-to solution for countering fatigue for years.

Vitamin B12 for Vegans and Vegetarians

While the quest for B12 might seem daunting for those on a plant-based diet, several foods and supplements can help bridge the gap effectively.

Nutritional Yeast

This vegan staple is not just a flavor enhancer but also a notable source of B12. Just a tablespoon can fulfill your daily requirements!

Fortified Foods

Fortified cereals can be a lifesaver, offering around 23% of the daily value per serving, making B12 deficiency a distant concern.

Shitake Mushroom

Though not as potent, shitake mushrooms can contribute to your B12 intake. Plus, they add an exquisite taste to any dish!

A Plant-Based Meal For Christmas Celebration


Popular in Asian cuisine, nori is a surprising source of B12. Incorporating just 4 grams in your daily diet can meet your B12 needs.

Clearly, the health benefits of vitamin B12 are vast and varied, from mental health support to physical wellness and preventive care. For those adhering to vegan or vegetarian diets, it’s crucial to find reliable sources of B12 to maintain these benefits. Whether through supplements or B12-rich foods, maintaining adequate levels of this essential nutrient is paramount for holistic health and wellbeing.


Can I get enough vitamin B12 from a vegan diet?

While challenging, it’s possible with fortified foods and supplements. Regular monitoring of B12 levels is advisable.

What happens if I don’t get enough vitamin B12?

Deficiency can lead to anemia, fatigue, nerve damage, and cognitive difficulties. Severe cases might result in heart disease and pregnancy complications.

Can high doses of vitamin B12 be harmful?

Generally, excess B12 is excreted by the body. However, it’s always best to adhere to the recommended daily intake unless advised otherwise by a healthcare professional.

Do vitamin B12 supplements work as well as the vitamin from food sources?

Yes, B12 supplements can effectively correct deficiencies. However, natural food sources are always a preferred option.

How long does it take to correct a vitamin B12 deficiency?

It varies based on the severity of the deficiency and individual health conditions. Some people might notice improvements within a few days, while for others, it might take months.