Free delivery on orders over €40
Free delivery on orders over €40
0
0
La vitamine B2

Ingredient information: Vitamin B2

Written by the Phytocea team Reviewed by Phytocea Scientific Advisory Board Editorial credit: Dr. Arnaud BERNARD
• • 2 min
Summarize with AI:

What is vitamin B2 (Riboflavin)?

Vitamin B2, or Riboflavin, is a water-soluble vitamin. It is necessary for metabolism.

What are the properties of Riboflavin (vitamin B2)?

Riboflavin (Vitamin B2) is the precursor of two derivatives important for metabolic function:

- FMN (flavin mononucleotide)

- FAD (flavin adenine dinucleotide)

These are co-enzymes necessary for the functioning of dehydrogenases and oxidases.

More specifically, these derivatives are necessary for the catabolism of fatty acids, certain amino acids, purines, the mitochondrial respiratory chain (energy supply), the Krebs cycle...

In short, their involvement in energy metabolism is major.

For a water-soluble vitamin, it is relatively poorly soluble in water, however its solubility is good in acidic solutions where it remains stable.

It is naturally yellow in color and is used as a food coloring (E101 and E106).

Is vitamin B2 fragile?

Vitamin B2 is sensitive to light, particularly ultraviolet light, but rather resistant to heat.

⚠️ When cooked in water, the amount of riboflavin present in food decreases (-30%).

⚠️ Riboflavin is very sensitive to light.

What foods are richest in vitamin B2?

It is synthesized in insufficient quantities in humans and must therefore be obtained through diet.

Riboflavin is present in a wide variety of animal and plant foods, but in small quantities. Liver and dairy products are a good source of vitamin B2.

Below are some examples of foods and their thiamine concentration (mg/100g):

  • Dry yeast: 2 - 13
  • Liver: 1.7 - 3.9
  • Cheeses, eggs, mushrooms: 0.3 - 0.6
  • Milk and dairy products: 0.12 - 0.27
  • Meats and fish: 0.05 - 0.47
  • Cooked green vegetables: 0.01 - 0.14

The recommended daily intake of riboflavin is 1.3 mg for adults.

Dietary intake of vitamin B2 tends to be insufficient in the general population (intakes < 80%).

Deficiencies are rare but can lead to skin or eye disorders.

What are the health claims of vitamin B2?

EFSA authorises the use of health claims for products containing vitamin B2.

They must provide a minimum of 0.21mg of vitamin B2 per 100g, 100ml or per serving.

Products meeting these criteria can claim to contribute to:

  • normal energy metabolism
  • to the normal functioning of the nervous system
  • to maintain normal skin and mucous membranes
  • to normal vision
  • to maintain normal red blood cells
  • to normal iron metabolism
  • to the reduction of fatigue
  • to the protection of cells against free radicals

And what about Phytocea?

At Phytocea , we have chosen to incorporate vitamin B2 into the ORetine formula.

ORetine is a vision food supplement intended, among other things, to maintain normal vision and prevent pathologies such as AMD or cataracts.

=== content-split ===

7489814462678

=== content-split ===

What are the contraindications and side effects of vitamin B2?

Limit consumption to 3 mg/day in pregnant women.

Overconsumption can lead to discolored urine and diarrhea.

Sources

Back to Nutraceuticals

FAQ

Les symptômes de carence en vitamine B2 peuvent inclure des troubles cutanés, des douleurs oculaires et une fatigue excessive. Si vous présentez ces symptômes, il est conseillé de consulter un professionnel de santé pour un diagnostic précis et des recommandations adaptées.

Il existe de nombreux suppléments de vitamine B2 disponibles, souvent sous forme de complexes vitaminiques. Assurez-vous de choisir des produits de qualité, idéalement certifiés par des organismes de santé, pour garantir leur efficacité et sécurité.

Oui, la cuisson à l'eau peut réduire la quantité de vitamine B2 dans les aliments, pouvant entraîner une perte jusqu'à 30%. Pour préserver cette vitamine, privilégiez des méthodes de cuisson à la vapeur ou au four.

Certaines études suggèrent que la vitamine B2 peut interagir avec des médicaments comme les antibiotiques. Il est important de discuter avec votre médecin de tous les suppléments que vous prenez pour éviter d'éventuelles interactions.

Pour les végétaliens, les meilleures sources de vitamine B2 incluent les levures, les champignons, les légumes verts, et les produits à base de soja. Envisagez également des suppléments si votre alimentation ne couvre pas vos besoins.

Oui, la vitamine B2 est essentielle pour maintenir une peau saine, car elle aide à la régénération des cellules et à la protection contre les radicaux libres. Un apport suffisant peut contribuer à une peau éclatante et en bonne santé.