From lavanguardia.com
Vitamin B12 is obtained from animal products such as meat, fish, eggs, and dairy. That's why people following a vegetarian or vegan diet (especially the latter) need to take supplements of this vitamin. This need is one of the most common questions in nutritionist consultations. Nutritionist Antonio Gómez, from the Aleris Center, states that “in principle, taking this supplement is necessary for both vegetarians and vegans.”
Although there is no deficiency of this vitamin, “there is no harm in exceeding the recommended dose, as consuming it in excess will not result in a health problem.” However, it is imperative that vitamin B12 and any other vitamin supplements be consumed according to a professional's guidelines, as we should never consume vitamins without consulting a doctor.
The lack of vitamin B12 poses a health risk
What happens if there is a deficiency of vitamin B12?
The lack of this nutrient can lead to certain health problems. Antonio Gómez explains that “in extreme cases, it can even cause cognitive damage.” He also warns that omnivorous people can also have a deficiency of vitamin B12.
In this regard, Dr. Álvaro Flamarique, a specialist in internal medicine at Quirónsalud Zaragoza, notes that “analytical studies can be carried out to assess its deficiency and, in the event that this occurs, supplement it if necessary.” He also emphasizes that a deficiency of vitamin B12 can lead to anaemia and that in general, all B-group vitamins “are related to the proper functioning of the brain and body metabolism.”
While all vegans or vegetarians should get tested and monitored to keep their vitamin B12 levels in check, anyone should watch out for a deficiency of this nutrient. One sign that indicates a possible lack of this vitamin is feeling more tired than usual.
“You may have iron deficiency anaemia, but this is not due to following a vegetarian diet. The prevalence of anaemia in the vegetarian population is the same as in the general population. Your fatigue may be due to various factors, and it is quite adventurous to attribute it solely to a dietary cause,” explains Paloma Gil, a doctor specialized in endocrinology and nutrition.
“If you lack vitamin B12, you can develop anaemia, but also neurological disorders such as tremors, weakness, gait disturbances, forgetfulness, poor manual coordination... This is what happens to patients with liver disease,” Dr. Gil adds. She acknowledges that these symptoms are not common among vegetarians or vegans, as they are usually well-informed about the importance of this vitamin.
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