Vitamin B7 (biotin) is essential for proper metabolism, especially in the metabolism of glucose, the level of which in the blood is stabilized. For this reason, vitamin B7 is important for people with diabetes. What else does vitamin B7 play in the body? What products are its source? How to dose it?

Vitamin B7( biotin ) is unique among other B vitamins because it is produced by the intestinal flora. Therefore, its deficiency is rarely observed. This is good news especially for diabetics, because vitamin B7 is necessary for proper metabolism, especially in the metabolism of glucose, the level of which in the blood stabilizes. What else does vitamin B7 have?

Vitamin B7 (biotin) - properties. What functions does biotin perform in the body?

Vitamin B7 participates in the synthesis of fatty acids, leucine metabolism and plays an important role in the process of gluconeogenesis. Biotin is an important component of the diet of diabetics. High fasting doses of biotin in patients with type II diabetes mellitus who are refractory to treatment with sulfanylurea have been shown to reduce glucose levels. In addition, biotin also affects the proper growth and development of the body, as well as the proper condition of the skin.

Vitamin B7 (biotin) - symptoms and effects of deficiency and excess

The symptoms of vitamin B7 deficiency occur mainly in patients undergoing long-term antibiotic therapy, artificially fed patients, people who have a very poor diet, people with damaged intestinal mucosa, which prevents the natural production of vitamin.

  • sleepiness
  • apathy

The need for biotin increases in long-term parenteral nutrition with hyperglycemia and insulin resistance.

  • irritability, anxiety, hallucinations, depression
  • muscle aches
  • numbness of feet and hands
  • change in skin color (gray-white), exfoliation of the epidermis
  • hair loss
  • splitting nails
  • conjunctivitis

No adverse symptoms of consuming higher doses of biotin for a long time have been observed.

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Vitamin B7 (biotin) - dosage

Standards for biotin set on the levelsufficient intake (AI)

  • infants - 5-6 µg
  • children: from 1 to 3 years of age - 8 µg; from 4 to 6 years of age - 12 µg; from 7 to 9 years of age - 20 µg
  • boys: from 10 to 18 years old - 25 µg
  • girls - 10-18 years old - 25 µg
  • men: 30 µg
  • women: 30 µg
  • pregnant women: 30 µg
  • lactating women - 35 µg

Source: Nutrition standards for the Polish population - amendment, Food and Nutrition Institute, Warsaw 2012

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Vitamin B7 (biotin) - products. Sources of vitamin B7

Biotin can be found in meat - the most in the liver (100-200 µg / 100 g), and also in kidneys, pork, beef and poultry (5-10 µg / 100 g). In addition, it is found in soybeans (65 µg / 100 g), nuts (30 µg / 100 g), and also:

  • in egg yolk
  • milk
  • cheese
  • bran
  • in fish (sardines, salmon)
  • yeast
  • dark rice
  • vegetables - corn, cauliflower, peas, tomatoes, spinach, carrots, beets, onions
  • raw flour
  • rapeseed and sunflower oil,
  • fruit - bananas, melons, grapefruits, watermelons, grapes and peaches

Food processing, cooking as well as UV radiation cause its partial or complete decomposition. It can be taken in vitamin preparations, along with other B vitamins.

Vitamin B7, or biotin - properties

Source: x-news.pl/Agencja TVN

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