Vitamin B12 deficiency occurs due to the mechanism of action of metformin, a drug that helps balance glucose levels.

Vitamin B12 occurs naturally in foods of animal origin, such as fish, meat, poultry, eggs, milk, and dairy products. Vitamin B12 is generally not present in plant foods, it is essential for the normal functioning of the brain, nervous system, and for the formation of blood and various proteins.

Vitamin B12 and diabetes

To control diseases such as insulin resistance, prediabetes or diabetes, the medical body regularly chooses to prescribe drugs such as metformin to help balance the glucose levels in the blood of its patients.

However, in some cases metformin can cause side effects, such as: diarrhea, nausea, heartburn, and gas.

According to the surgeon Carlos César Carrasco Curiel, the deficiency of this vitamin occurs due to the mechanism of action of the drug, which prevents the correct absorption of the vitamin throughout the body.

Lack of vitamin B12 can cause health problems such as: irritability, tiredness, dizziness, disorientation, pale skin, mood swings, headache, anemia, memory loss and dementia.

Dr. Carrasco Curiel points out that to avoid vitamin B12 deficiency, it is necessary to consume dietary supplements prescribed by your doctor.

The only way to know if you have a lack of vitamin B12 is by means of a blood count performed in a clinical laboratory, since this does not present symptoms. 

Patients must be in constant review and communication with their doctor, in order to maintain their blood glucose levels at normal levels and avoid health problems.