What does the vitamin B complex contain?

The vitamin B complex includes as a whole 8 vitamins. There are no chemical or pharmacological similarities between these 8 vitamins, but they are all important regulators in human metabolism.

Vitamin B1

At Vitamin B1 it is about Thiaminewhich in a shortage situation to the disease Beriberi can lead. The daily requirement of vitamin B1 is between 1 and 1.2 mg.

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Vitamin B2

Vitamin B2 will also be Riboflavin called and occurs mainly in eggs, meat and offal. The daily requirement is approx. 1.2 - 1.5 mg.

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Read detailed information on the topic: Vitamin B2

Vitamin B3

Under Vitamin B3 one understands Nicotinic acid and niacin, respectively. A deficiency in vitamin B3 can lead to disease that is itself Pellagra is called. The average daily requirement is between 12 and 17 mg.

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Vitamin B5

Vitamin B5 is Pantothenic acid, which is found in almost all foods. People should take in about 6mg per day.

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Vitamin B6

At Vitamin B6 it is about Pyridoxine. which is particularly abundant in liver and yeast. A daily intake of 1.2 to 1.7 mg is recommended.

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Vitamin B7

Vitamin B7 is also as Biotin or vitamin H. An amount of about 30-60? G should be consumed per day.

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Vitamin B9

Also Folic acid belongs to the group of B vitamins and is also under vitamin M, Vitamin B9 or vitamin B11 and is especially known in the pregnancy important about certain deformities (Spina bifida) to avoid. A healthy adult should consume about 0.4 mg daily

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Vitamin B12

Cobalamin is Vitamin B12 and can lead to a certain type of deficiency in severe deficiency states anemia (pernicious anemia). Anemia describes one Anemia. The daily requirement is approx. 3? G.

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When should I take the vitamin B complex?

Taking or administering vitamin B complexes can cause a prophylactic, i.e. have a preventive purpose, for example if a person is in danger of insufficient vitamin intake due to an illness or other circumstance. This is the case with many, for example Tumor patients the case. At a pregnancy there is also often the risk of a vitamin B deficiency, because here the body has an increased need for vitamin B, in particular for Vitamin B9 (Folic acid).

Another indication is that therapeutic Indication if the administration of vitamins can alleviate symptoms. Especially Diseases of the gastrointestinal tract often lead to an insufficient absorption of vitamins through food and thus also to a deficiency situation.

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In most cases, a healthy, balanced diet can ensure that a healthy person has an adequate intake of vitamins from the B group and thus avoid deficiency symptoms.

Vitamin B complex in the form of high-dose ampoules

Vitamin B products are now also available in pharmacies or drugstores. For therapeutic purposes, the vitamins are usually available in higher doses. These are often ampoules that are used once a day or several times a week intramuscular, i.e. into the muscle, must be injected. This should be done by an experienced doctor. Ampoules have the advantage that, compared to tablets that are absorbed through the gastrointestinal tract, the vitamins can be absorbed better and in higher quantities. The intramuscular route is particularly recommended for people who suffer from a disease of the gastrointestinal tract.

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This form of administration means that the vitamin stores are replenished more quickly. In addition, there are fewer side effects in the form of digestive disorders. In the case of oral intake, i.e. taking tablets, this is also achieved, but it takes much longer.


The dosage of B vitamins varies from product to product, but is always well above the recommended daily dose for a healthy adult. Most of the preparations that should be available over the counter in the drugstore or pharmacy 1 to 2 times a day as Nutritional supplement be taken. The ampoules already mentioned above are high-dose B vitamins that should usually be applied to the muscle by a doctor. At the beginning of therapy and in acute deficiency situations, the injections should be carried out daily; later, the injections should only be carried out once or twice a week to maintain the effect. In general, the dosage of the vitamin B complex to prevent a vitamin deficiency is significantly lower than the dosage used to treat an existing vitamin deficiency and its symptoms.

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Side effects

Since the B vitamins are water-soluble vitamins is an overdose of vitamin B supplements in the in most cases harmless, as excess vitamins are excreted in the urine. However, in spite of everything, in rare cases there may be side effects from overdosing individual vitamins.

In the event of an overdose of vitamin B3, a distinction must be made between nicotinic acid and niacin. As a rule, niacin is much better tolerated by the human body than nicotinic acid. With vitamin B3 you can start at an amount of approx. 3-9 g per day Disorders in the gastrointestinal tract occur mainly with nausea and Vomit accompanied. The skin is also affected by an overdose of vitamin B3. Flushed Skin and itching can be the result. In difficult cases, a long-term overdose of vitamin B3 can also lead to changes in the cells of the liver, accompanied by inflammation of the liver, a so-called hepatitis

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With very high quantities Vitamin B5 In the first few days, gastrointestinal disorders and digestive problems can also occur. One speaks of an overdose here from approx. 10-20 mg per day.

Vitamin B6 can also have side effects above a certain amount. An amount of over 500mg pyridoxine per day is critical here. As a result of an overdose can in rare cases Nerve damage occur. These can be, among other things, through a disturbed sense of temperature, Weakening or loss of reflexes, Sensory disturbances or else Signs of paralysis to make noticable.

The skin can also react sensitively to an overdose of vitamin B6 and cause inflammation, a so-called dermatitis, tend. Also allergic Reactions to individual vitamins or ingredients of the tablets / capsules or ampoules, depending on the dosage form, are possible.

Vitamin B complex against nerve pain and nerve damage

In the therapy of Nerve pain can above all Vitamin B1, Vitamin B6 and Vitamin B12 achieve a soothing effect. On the one hand, it is possible that nerve pain occurs when there is a deficiency in these vitamins; on the other hand, the B vitamins can also be helpful for nerve pain that is not caused by a vitamin deficiency.

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Thiamine (vitamin B1) in particular can increase if it is deficient Pain, tingle, Paresthesia and deafness to lead. A Vitamin B1 deficiencyl occurs frequently with one prolonged alcohol abuse on. Above all, these three B vitamins can inhibit the transmission of pain in nerve cells or raise the pain threshold at which the pain is also perceived as pain. In addition, the vitamins are able to positively influence the repair of damaged nerve cells to a certain extent. These preparations are used primarily for nerve pain in tumor patients, sometimes for a headache, for damage to nerves, such as those in the diabetic foot can be found, but also at Bone pain or Arthritis.

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