Vitamin B12
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  • Provides 1000mcg of Vitamin B12 methylcobalamin per vegetable capsule.
    GF LF V VG GMO
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    Group B Vitamins with inositol. It provides the daily nutrient reference value for Group B Vitamins.
    GF LF V VG GMO
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  • 1000µg of Vitamin B12 Cyanocobalamin for each vegetable capsule.
    GF LF V VG GMO
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  • Special products pack for vegans, keeping fit is no longer an excuse!
    V VG

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  • BCAA's 4:1:1 with vitamins B6 and B12.
    GF DF S NP CF GMO
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  • Promotes cellular energy. Support for the nervous and cardiovascular system.
    V
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  • VITAMIN B12 - 30ml - Marnys
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    Liquid Vitamin B12 in a bottle with dropper. It provides 2.5µg of Vitamin B12 per daily dose.
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    Pre-workout formula with Creatine, Beta-Alanine, Caffeine and more.
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    GF LF V GMO
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  • Essential vitamin for the correct function of the brain
    GF V
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  • Vitamin B complex with Beer Yeast, Choline Bitartrate and Inositol.
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  • Sublingual capsules. Covers the RDA of vitamin B12.
    GF LF V
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  • Quick dissolving Vitamin B12. Promotes energy and offers support for the nervous system.
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Vitamin B12

Vitamin B12 is found only in foods of animal origin. As a result, vegetarians and vegans especially suffer a deficiency of vitamin B12. This deficiency can be avoided by consuming dietary supplements of vitamin B12 in tablets.

Vitamin B12 is essential for the proper functioning of the body's energy and the nervous system, and its deficiency can cause serious health problems.

It is involved in the formation of red blood cells and the functioning of proteins, it promotes concentration and memory, ensures healthy mucous membranes, and protects the heart. Vegetarians need to consume more vitamin B12 because they do not eat meat. Old people also need more vitamin B12, as they do not often meet their requirements through food.

Vitamin B12 is a water soluble coenzyme which enables the functioning of several metabolic processes by interacting with other enzymes. Vitamin B12 is significantly involved in the production of red blood cells, cell division, and transmission of nerve stimuli.

Vitamin B12, when combined with folic acid and vitamin B6, helps to keep the heart and nervous system in a healthy state. In particular, vegans are affected by the lack of vitamin B12 and normally have low levels because they do not consume any food of animal origin.

Effects of Vitamin B12

Table of contents

    1. Effects of Vitamin B12
    2. Vitamin B12 is recommended for:
    3. What foods contain Vitamin B12?
    4. What are the symptoms of a Vitamin B12 deficiency?
    5. Who can especially benefit from Vitamin B12 supplements?
    6. The experts' opinion on Vitamin B12:
      1. 1. The brain ages more slowly
      2. 2. Antidote for smoke inhalation

  • Almost all nerve fibers are surrounded by a protective layer that allows a fast transmission of information. Vitamin B12 plays an essential role in the production of this protective layer.
  • Vitamin B12 performs the intermediate step in the transfer of genetic information to daughter cells, especially important for red blood cells, which divide quickly.
  • Vitamin B12 is involved in the regeneration of the mucous membranes.
  • Vitamin B12 is naturally produced by microorganisms in the human colon, but the amount is not enough to meet the body's requirements. For this reason, the absorption of Vitamin B12 through food is essential.
  • Vitamin B12 is necessary for the functioning of the immune system.
  • Vitamin B12 is needed in the stages of reproduction and pregnancy.
  • Vitamin B12 is necessary for the functioning of the nervous system, since it is involved in the formation of the myelin sheath that protects the nerve endings and allows communication between them.
  • Vitamin B12, along with folic acid and vitamin B6, participates in the conversion of homocysteine produced by the metabolism, preventing the development of diseases in the cardiovascular system. The amino acid homocysteine is used after various changes in gene regulation and protein production. However, if the remains of homocysteine are deposited in the body, they can cause vascular calcification.

Vitamin B12 is recommended for:

  • Vegetarians or those who follow a vegetarian diet
  • In the case of people with anemia
  • In diseases and surgery of the digestive tract
  • In pregnancy and lactation
  • Those with high levels of homocysteine
  • Old people
  • When you consume a lot of alcohol
  • When you smoke a lot
  • When you use medicines that reduce vitamin B, as in the case of medicines for cholesterol, antibiotics, antihypertensives, psychotropic, or medicines to treat several diseases: Parkinson's disease, cancer, gout, etc.

What foods contain Vitamin B12?

The richest sources of vitamin B12 are found in the offal and guts of animals. Milk and eggs also contain vitamin B12, but in a very small proportion. A pure vegetarian diet does not supply the body with the vitamin B12 it needs.

The absorption of vitamin B12 from food is performed in the small intestine with the help of an intrinsic factor, a specific transport protein. The production and functioning of this protein may be interrupted by several gastrointestinal diseases, as well as by the normal aging process of the intestine, whose ability to absord nutrients deteriorates.

What are the symptoms of a Vitamin B12 deficiency?

The first signs of a lack of vitamin B12 are a tingling sensation in the hands and feet, which is often combined with the sensation of being cold. It can trigger an incipient anemia with an unnatural paleness, general weakness and strong fatigue. It can even produce an unpleasant burning sensation on the tongue.

A permanent lack of vitamin B12 affects the functioning of the nervous system, causing mood swings, memory problems, dementia, and mental confusion. The production of blood and fertility in men and women can be affected by a deficiency of vitamin B12.

Who can especially benefit from Vitamin B12 supplements?

  • Vegans
  • People with gastrointestinal diseases
  • People with anemia
  • People who have undergone surgery to remove gastrointestinal tissue
  • Alcoholics
  • Smokers

The experts' opinion on Vitamin B12:

1. The brain ages more slowly

In a study carried out at the University of Oxford on vitamin B12, it was discovered that it can prevent or slow down the aging process of the brain. It has also been scientifically proven that vitamin B12 provides a greater ability to concentrate.

2. Antidote for smoke inhalation

In medicine, a precursor of vitamin B12 is used to make cyanide gases harmless. Even smokers can benefit from this inactivating effect of cyanide through the consumption of vitamin B12.


Déficit vitamina b12

Vitamin B12 deficiency 

If you suspect that you have a very low level of vitamin B12, you should know that you are not the only one. Recent clinical studies carried out in Framingham, United States, have shown that one in four adults has a lack of this vital nutrient. Nearly half of the population has vitamin B12 blood levels below the recommended level.

Vitamin B12 is correctly called the energy vitamin, as our body needs it carry out multiple vital functions, which include: energy production, hematopoiesis, DNA synthesis and formation of myelin. Myelin is the layer that insulates and protects the nerve endings, which, in turn, allow communication between them.

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Differences between methylcobalamin and cyanocobalamin

Cyanocobalamin and Methylcobalamin

Vitamin B12, which is also called cobalamin, is one of the vitamins that belongs to the hydro-soluble complex B vitamins. It can be found in nature in four different chemical forms: cyanocobalamin, methycobalamin, hydroxocobalamin, and adenosylcobalamin.

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Vitamina B12 factor intrínseco

Vitamin B12 and Intrinsic Factor

A vitamin B12 deficiency can lead to a Helicobacter pylori infection, which causes stomach ulcers. H. pylori bacteria damage the stomach cells that are responsible for the production of the intrinsic factor, which is essential for the correct absorption of vitamin B12.

Cobalamin is the technical name for vitamin B12. The main cause of a vitamin B12 deficiency is malabsorption syndrome. This condition usually develops when our stomach lining loses its ability to produce the intrinsic factor, which is the protein that binds to vitamin B12 and allows the body to absorb it in the small intestine and distribute it through the bloodstream.

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Fuentes de Vitamina B12

Sources of Vitamin B12

Vitamin B12, also known as cobalamin or cyanocobalamin, belongs to the large group of water-soluble vitamins.

Their main functions are related to the maintenance of the myelin coating of nerve cells, the production of hemoglobin, the conversion of fatty acids into available energy and, to a lesser extent, the synthesis of DNA and neurotransmitters.

Therefore, a deficit of this substance may cause certain clinical conditions such as megaloblastic anemia, chronic fatigue or neurological disorders such as numbness or tingling.

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