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Do Vitamin B12 Supplements Work?

What is vitamin B-12?

Vitamin B12, also known as cobalamin, is an important vitamin you need for good health. B12 is one of the vitamins that helps the body convert the food we eat into glucose, which produces energy that we use everyday. Vitamin B12 has a number of additional functions. These are just some of the things vitamin B12 does:

  • aids in the production of some elements of DNA
  • aids in the production of red blood cells
  • helps the regeneration of our bone marrow and the lining of our gastrointestinal and our respiratory tracts
  • keeps the health of the nervous system, which includes the spinal cord
  • aids in the prevention of anemia / low red blood cells

How long does it take for a vitamin B12 to start working?

There is exact no way to state how long it will take for a vitamin B12 supplement to start working. 

In vegans and other individuals who have a B12 deficiency because of diet-restrictions, taking B12 may work more efficiently. Liquid / ingested B12 supplements and a specific diet created to increase intake of vitamin B12 should cure the condition of B12 deficiency.

How much B12 should you take a day?

Vitamin B12 is a water-soluble nutrient and is required for many important chemical processes in our bodies. The correct dose of vitamin B12 changes based on age, gender, diet, and any other reasons for taking it.

    If you are at risk of vitamin B12 deficiency, supplementing with a oral vitamin B12 may help you. Usually a dose of 1000-2000 mcg a day will help with those who have B12 deficiency and for those individuals who do not have a B12 deficiency, it can help with an increase of energy, aid in better mood and metabolism of carbs.

    Can B12 supplements make you sleepy?

    Many studies show that vitamin B12 has a huge role in balancing our energy levels. Supplementing with vitamin B12 helps to give us more energy, rather than making us tired or sleepy. If you do notice feeling a little tired of more fatigued than normal, even though you are taking a B12 supplement daily, it is more likely a sign of something else that rather than the B12 supplement. If that is the case, it is best to see your doctor and get the proper diagnosis / treatment.


    Can low B12 levels cause weight gain?

    Despite the many numerous chemical processes in which vitamin B12 is involved in, there is not much evidence, research or studies to suggest that B12 has any influence on gaining or losing weight.

    Research studies cannot confirm or be sure on whether low vitamin B12 levels are what causes weight gain. That being said, any recent evidence is too weak to suggest that vitamin B12 deficiency has any influence or specific impact on weight gain or loss.

    Think you need Vitamin B12 supplement? Be sure to check out our GNA Naturals liquid B12!