Vitamin B12 Deficiency: Feeling exhausted all the time? Cardiologist talks about why vitamin B12 is essential
Do you feel tired all the time? Persistent fatigue is not normal. Feeling exhausted, even after a restful night, signals an underlying issue. Fatigue is one of the signs of vitamin B12 deficiency.
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This nutrient is responsible for some of the important functions in the body, including DNA synthesis, energy production, and central nervous system function. Despite its importance, about 47% of the Indian population has a vitamin B12 deficiency, according to a 2019
. Dr. Alok Chopra, a renowned cardiologist and functional medicine expert, emphasizes the vital role of vitamin B12, its dietary sources, and the risks associated with deficiency, especially in vegetarians.
What is vitamin B12
Vitamin B12 is a water-soluble nutrient crucial for several bodily functions. 'It is essential for metabolism, digestion, and overall health,' the cardiologist stresses. It is naturally present in certain foods, and available as a dietary supplement and a prescription medication.
What are the sources of vitamin B12
Vitamin B12 is naturally present in foods like fish, poultry, eggs, and milk. However, it absent in most plant-based foods unless fortified. 'Vegetarians always have a problem with not having enough B12,' the doctor
.
Plant-based foods generally do not contain B12, but fortified foods like nutritional yeast and certain cereals can serve as reliable sources. He suggested that vegetarians can take supplements or B12-fortified products to meet daily requirements.
What are the functions of vitamin B12
Vitamin B12 is responsible for several important
in the body. This nutrient plays a pivotal role in the production of healthy red blood cells and prevents megaloblastic anemia.
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It also helps in the replication and maintenance of DNA in the cells. Vitamin B12 also maintains the health of nerve cells and supports the proper functioning of the nervous system. It also has a crucial role in converting carbohydrates into glucose. Vitamin B12 is also vital for brain health.
It boosts memory, focus, and overall cognitive health, and also reduces the risk of neurodegenerative diseases. This nutrient has a significant role in heart health.
Vitamin B12 helps regulate homocysteine levels in the blood, thereby reducing the risk of cardiovascular disease. It also helps in mood regulation, bone health, skin, hair, and nail health, and boosts the immune system.
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What are the signs of vitamin B12 deficiency
Despite its crucial role in the body, vitamin B12 deficiency is very common. Some of the signs of vitamin B12 deficiency include:
Fatigue
Pale or yellow skin
Headaches
Depressive symptoms
Gastrointestinal issues
Difficulty focusing
Glossitis and mouth ulcers
Weight loss
Feeling unwell
'Deficiency can be cured by adequate nutrition, intramuscular injections or even oral B12 therapy,' the cardiologist said.
The doctor also cautioned about the negative effects of excessive intake of vitamin B12. 'Overuse can cause diarrhea, itching, rashes, headache, dizziness, nausea, and heart failure. Patients with optic neuropathy, polycythemia, gout, iron, folate deficiency, and when there are low potassium levels, you must consult a doctor.'
Do not take with certain other nutrients
The doctor suggests not combining vitamin B12 supplements with vitamin D. 'Vitamin B12 and D should not be taken together as vitamin D is fat soluble and is absorbed better with food, and B12 is water soluble and taken on an empty stomach. Same for vitamin C,' he adds.
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