The 6 symptoms that indicate a lack of vitamin B12

Vitamin B12 is an essential nutrient for the proper functioning of the human body , especially the nervous system and red blood cell production. Its deficiency can trigger severe effects if not detected and treated promptly. Here are six symptoms that indicate a deficiency of this important substance.

Vitamin B12 is an essential nutrient for the proper functioning of the human body , especially the nervous system and red blood cell production. Its deficiency, although common and often silent, can trigger severe effects if not detected and treated promptly.

According to the U.S. National Library of Medicine, vitamin D deficiency anemia affects the body's ability to transport oxygen through the blood and can lead to neurological damage if prolonged. Some of its symptoms include:

1. Persistent fatigue and unexplained weakness: One of the first signs of vitamin B12 deficiency is a persistent feeling of tiredness, even after resting. The lack of healthy red blood cells means tissues don't receive enough oxygen, resulting in general weakness and poor physical performance.

2. Difficulty concentrating and brain fog:

People with B12 deficiency often experience difficulty concentrating, confusion, or even episodes of memory loss. In severe cases, this can lead to dementia-like symptoms.

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3. Tingling or numbness in hands and feet: Vitamin B12 is essential for nerve health. When there's a deficiency, it's common to experience tingling, prickling, or numbness in the extremities. This symptom, known as paresthesia, can worsen over time if left untreated.

4. Paleness or yellowing of the skin:

Pale or slightly yellow skin can be a sign of anemia. When the body doesn't produce enough red blood cells, it begins to show visible signs in the skin, eyes, and mucous membranes.

5. Mood swings and irritability:

Emotional disturbances such as irritability, mild depression, or anxiety can also be linked to low B12 levels. This nutrient influences the production of serotonin and other brain chemicals related to mood.

6. Digestive problems and loss of appetite: Constipation, diarrhea, and loss of appetite are other warning signs. In addition, many people develop a swollen tongue (glossitis), bleeding gums, or a burning sensation in the mouth.

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How to detect vitamin B12 deficiency?

Specialists agree that early detection of this vitamin deficiency is essential to avoid major problems.

A blood test can determine whether a deficiency exists, and, depending on the case, treatment may consist of oral supplements or monthly injections of vitamin B12. It's important to note that people with absorption disorders often require lifelong treatment.

In turn, a balanced diet that includes foods such as red meat, fish, eggs, dairy products, and fortified cereals helps prevent this deficiency. People with dietary restrictions or digestive conditions should consider supplementation, always under medical supervision.