Ein kleines Mädchen isst ein Stück Apfel, neben ihr steht eine Schale mit illustrierten Früchten.
Ein kleines Mädchen isst ein Stück Apfel, neben ihr steht eine Schale mit illustrierten Früchten.
Vitamin B
The power complex

Vitamin B

Vitamins support numerous functions in the body and ensure that the body's own processes function practically like many small cogwheels in various places.

What is vitamin B?

Technically speaking, vitamin B is not a single vitamin but a whole group of vitamins. This vitamin B complex is made of the following eight vitamins:

  • Vitamin B1 (thiamine)
  • Vitamin B2 (riboflavin)
  • Vitamin B3 (niacin)
  • Vitamin B5 (pantothenic acid)
  • Vitamin B6 (pyridoxine, pyridoxamine and pyridoxal)
  • Vitamin B7 (biotin)
  • Vitamin B9 (folic acid)
  • Vitamin B12 (cobalamin)

Another special feature of the vitamin group is that they are by no means similar or identical substances. On the contrary - they are completely different substances, both chemically and in terms of their effect. This is shown, among other things, by the fact that only a few B vitamins can be stored by the body, namely vitamin B12 and vitamin B3. However, both vitamins can only be stored in very limited quantities. The other B vitamins cannot be stored by the body at all, as they are water-soluble and are excreted from the body. This is why you need to take B vitamins regularly through food.

Effects of the vitamin B complex

[Translate to Englisch:] Frau buddelt bei Sonnenschein im Garten

The members of the vitamin complex are all different, as are their effects in the body and the metabolic processes in which they are involved. Below you can find out more about the many different roles of the B vitamins in maintaining your health.

Vitamin B1

Vitamin B1, or thiamine, helps keep your mind and body healthy. Among other things, thiamine ensures the normal functioning of the nervous system, the heart and the psyche, which is why it is also popularly known as the mood vitamin

If you drink a lot of coffee or black tea, this can inhibit this vitamin from being absorbed.

Vitamin B2 

Vitamin B2, technically known as riboflavin,  also has a variety of functions. It supports a normal energy metabolism and is responsible for maintaining normal blood cells. Since these properties are important for various growth processes, among other things, riboflavin is also known as a growth vitamin

However, its positive effect on the eyes is also well known, as vitamin B2 contributes to the maintenance of normal vision.

When prepared gently, it can also be found in many foods after heating: Although this B vitamin does not tolerate light particularly well, it is relatively insensitive to heat.

Vitamin B3 

Niacin, or vitamin B3, is important for the maintenance of normal normal mucous membranes and skin. It also helps to reduce tiredness and fatigue.

Niacin is found in many foods; however, the niacin from plants is utilised somewhat less effectively by the body than that from meat. Your body is able to produce vitamin B3 from the amino acid tryptophan, which is found in soya beans or peas.

Vitamin B5

If you want to stay alert, vitamin B5, also known as pantothenic acid, is your friend. Vitamin B5 supports energy metabolism and contributes to the normal synthesis of some neurotransmitters. Neurotransmitters are messenger substances of nerve cells. Pantothenic acid also contributes to a reduction in  tiredness and fatigue and to the normal synthesis of vitamin D.

Vitamin B6 

Vitamin B6 ensures a healthy protein balance and cysteine synthesis. Cysteine is an amino acid mainly found in hair and nails. It also contributes to normal nervous system function and helps regulate hormone activity. Vitamin B6 is really a collective term for several chemical substances (pyridoxine, pyridoxal and pyridoxamine) but they all occur together in many foods. Vitamin B6 is sensitive to heat, so foods containing it should be prepared carefully.

Vitamin B7

Vitamin B7 is probably best known to women as “biotin”. It plays a role in maintaining normal hair and skin. As these factors are important for our own well-being, there are now even biotin shampoos. Among other things, vitamin B7 contributes to the healthy metabolism of micronutrients (fat, carbohydrates and proteins) and the energy metabolism.
 

Vitamin B9

Vitamin B9 is water-soluble and primarily known as folate or folic acid, particularly important for pregnant women and women planning to have children. Folic acid plays an important role in growing maternal tissue during pregnancy. Folic acid also has a function in cell division and is indirectly involved in the multiplication of genetic material.

Vitamin B12

Like most vitamins, your body cannot produce vitamin B12 itself, or in technical terms, “cobalamin”. This B vitamin contributes to healthy red blood-cell formation, cell division, normal energy metabolism, while reducing fatigue and tiredness. Lastly, it supports the mental and nervous system functions.

Vitamin B12 is produced by micro-organisms in the soil, which are absorbed by animals. This means you can easily get enough vitamin B12 through animal products. Vegetarians and especially vegans can avoid deficiency by taking vitamin B12 supplements, after consulting a doctor. In addition to medicines, high-dose vitamin B12 supplements are also suitable for this purpose.

Food with B vitamins & daily requirements

[Translate to Englisch:] Bunter Tisch mit Früchten, Haferflocken, Nüssen, Sojabohnen, Linsen

Since your body cannot store water-soluble vitamins, ensuring a sufficient daily intake through a balanced and varied diet is important. As different as the members of the vitamin B complex are, so are the daily requirements and the amounts contained in food.

Below we have listed the reference values of the German Nutrition Society (DGE). These provide an indication of the correct amounts of vitamins to consume. At the end of each overview, we provide tips on the appropriate diet.

All the following are average values according to Souci, Fachmann, Kraut: Food Composition and Nutrition Tables (7th ed.). Munich: C.H. Beck. 2008

Vitamin B1 - Reference values & food

Thiamin Referenzwerte

Age Thiamine mg/day - men Thiamine mg/day - women
1 to under 4 years 0.6 mg 0.6 mg
4 to under 7 years 0.7 mg 0.7 mg
7 to under 10 years 0.9 mg 0.8 mg
10 to under 13 years 1.0 mg 0.9 mg
13 to under 15 years 1.2 mg 1.0 mg
15 to under 19 years 1.4 mg 1.1 mg
19 to under 25 years 1.3 mg 1.0 mg
25 to under 65 years 1.2 mg 1.0 mg
65 years and older 1.1 mg 1.0 mg
Pregnant women - 2nd trimester   1.2 mg
Pregnant women - 3rd trimester   1.3 mg
Breastfeeding women   1.3 mg

Whole grain products, pulses, grains, as well as fish and meat are especially good thiamine sources. Here are some examples of small vitamin B1 bombs.

Food Thiamine per 100 g
Sunflower seeds 1.9 mg
Dried peas 0.8 mg
Oatmeal 0.59 mg
Beef heart 0.51 mg
Wheat (wholegrain) 0.455 mg
Millet, husked 0.433 mg
Natural rice 0.41 mg
Rye, wholemeal 0.368 mg
Chicken liver 0.32 mg
Duck 0.3 mg
Beef fillet 0.1 mg
Wheat flour type 405 0.06 mg

Vitamin B2 - Reference values & food

Age Riboflavin mg/day - men Riboflavin mg/day - women
Children between 1 and 7 years 0.7-0.8 mg 0.7-0.8 mg
Children between 7 and 13 years 1.0-1.1 mg 0.9-1.0 mg
Youths between 13 and 19 years 1.4-1.6 mg 1.1-1.2 mg
Adults 19 years and above 1.3-1.4 mg 1.0-1.1 mg
Pregnant women from 2nd trimester   1.3 mg
Breastfeeding women   1.4 mg

Riboflavin is relatively resistant to heat but not sunlight. Therefore, store food in a dark place. For a diet rich in vitamin B2, use these foods:

Food Riboflavin per 100 g
Dried soybeans 0.46 mg
Eggs 0.408 mg
Saithe 0.35 mg
Kale 0.25 mg
Pork 0.23 mg
Spinach 0.202 mg
Whole milk 0.18 mg
Broccoli 0.178 mg

Vitamin B3 - Reference values & food

Age Equivalent of niacin mg/day - men Equivalent of niacin mg/day - women
Children between 1 and 7 years 8-9 mg 8-9 mg
Children between 7 and 13 years 11-13 mg 10-11 mg
Youths between 13 and 19 years 15-17 mg 13 mg
Adults 19 years and above 14-16 mg 11-13 mg
Pregnant women from 2nd trimester   14-16 mg
Breastfeeding women   16 mg

Fruit and vegetables contain very little niacin; however, animal products and mushrooms contain larger quantities.

Food Niacin per 100 g
Chicken liver 12 mg
Oyster mushroom 10 mg
Tuna 8.5 mg
Beef (pure muscle) 7.5 mg
Cultivated mushroom 5.2 mg
Saithe 4 mg
Lenses 2.5 mg

Vitamin B5 - Reference values & food

Age Pantothenic acid mg/day
Children between 1 and 10 years 4 mg
Children and youths between 10 and 19 years 5 mg
Adults 19 years and above 5 mg
Pregnant women 5 mg
Breastfeeding 7 mg

Pantothenic acid is mainly found in high concentration in offal, whole grain products, avocados, eggs and nuts.

Food Pantothenic acid per 100 g
Pork liver 6.8 mg
Yeast 3.5 mg
Peanut 2.9 mg
Wheat bran 2.5 mg
Natural rice 1.7 mg
Dried soybeans 1.7 mg
Eggs 1.6 mg
Avocado 1.1 mg

Vitamin B6 – Reference values & food

Age Vitamin B6 mg/day - men Vitamin B6 mg/day - women
Children between 1 and 4 years 0.6 mg 0.6 mg
Children between 4 and 7 years 0.7 mg 0.7 mg
Children between 7 and 10 years 1.0 mg 1.0 mg
Children between 10 and 13 years 1.2 mg 1.2 mg
Youths between 13 and 15 years 1.5 mg 1.4 mg
Youths between 15 and 19 years 1.6 mg 1.4 mg
Adults 19 years and above 1.6 mg 1.4 mg
Pregnant women in 1st trimester   1.5 mg
Pregnant women from 2nd trimester   1.8 mg
Breastfeeding women   1.6 mg

Vitamin B6 is also found in many foods. However, up to a third of the vitamin is released into water when cooked, so vegetables are best eaten steamed or raw if possible.

Food Vitamin B6 per 100 g
Soybeans 1 mg
Sardine 0.96 mg
Walnuts 0.870 mg
Baker’s yeast 0.7 mg
Mackerel 0.63 mg
Pork liver 0.59 mg
Beef fillet 0.5 mg
Topside pork 0.39 mg
Bananas 0.363 mg
Potatoes 0.307 mg
Carrots 0.270 mg

Vitamin B7 - Reference values & food

Age Biotin µg/day
Children between 1 and 4 years 20 µg
Children between 4 and 10 years 25 µg
Children between 10 and 15 years 35 µg
Youths between 15 and 19 years 40 µg
Adults 19 years and above 40 µg
Pregnant women 40 µg
Breastfeeding women 45 µg

Biotin is found in many foods in medium to high concentrations, so you can easily cover your daily requirements with a balanced and varied diet.

Food Biotin per 100g
Wheat bran 44 µg
Pork liver 27 µg
Eggs 25 µg
Oat flakes 20 µg
Spinach 6,9 µg
Peas 5,3 µg
Whole milk 3,5 µg

Vitamin B9 - Reference values & food

Age Folic acid µg/day
Children between 1 and 7 years 120-140 µg
Children between 7 and 10 years 180 µg
Children between 10 and 13 years 240 µg
Youths between 13 and 19 years 300 µg
Adults 19 years and above 300 µg
Pregnant women 550 µg
Breastfeeding women 450 µg

Folic acid or “folate” is mainly found in green vegetables.

Food Folic acid per 100 g
Baker’s yeast 716 µg
Dried chickpeas 340 µg
Dried soybeans 250 µg
Wheat bran 195 µg
Kale 187 µg
Peas 159 µg
Spinach 145 µg
Lamb’s Lettuce 145 µg

Vitamin B12 - Reference values & food

Age Vitamin B12 µg/day
Children between 1 and 7 years 1.5-2 µg
Children between 7 and 10 years 2.5 µg
Children between 10 and 13 years 3.5 µg
Youths between 13 and 19 years 4 µg
Adults 19 years and above 4 µg
Pregnant women 4.5 µg
Breastfeeding women 5.5 µg

Vitamin B12 is almost only found in animal products.

Food Vitamin B12 per 100 g
Pork liver 39 µg
Oysters 15 µg
Saithe 3,5 µg
Camembert 3,1 µg
Beef fillet 2 µg
Eggs 1,9 µg

Preventing vitamin B deficiency

You can provide enough B vitamins for yourself and your family through a balanced and varied diet. An excess of vitamin B is usually extracted through urine and many B vitamins are unlikely to be deficient with a balanced diet. Vegetarians or vegans should take measures to ensure they get enough vitamin B12, which is almost exclusively found in animal products.

More about vitamins & nutrients

Eine glückliche Familie sitzt gemeinsam am Tisch und frühstückt.

Vitamins & minerals

Want to know what all the valuable micronutrients do, what foods have them and how much you need? Find more information here.

Find out more
Eine Mutter und ihre Tochter sitzen eng beisammen in der Küche und lächeln sich liebevoll an.

Biotin

Biotin is known among nutritionists as a supporter of strong hair and beautiful skin and, like all B vitamins, plays a role in various metabolic processes in your body.

Find out more
Ein kleiner Junge wird von einer Frau auf einem Skateboard angeschoben und lacht dabei fröhlich.

Niacin

Niacin is better known as vitamin B3. It has many functions but is especially known for maintaining healthy mucous membranes and skin – after all, it is our largest organ.

Find out more

Start the day healthy with Rotbäckchen

Learning

Supplies the brain with important energy in the form of iron and B vitamins.

Eine Packung Rotbäckchen Vital Energie Formel mit Vitamin B12 steht aufrecht und zeigt Früchte auf der Vorderseite.

Vital Energy Formula

supports the body’s energy metabolism with high-dose vitamin B12 and contains important protein elements.

Good Morning

For a great start to the day with 10 valuable vitamins and calcium.

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