Vitamin B2

Riboflavin or vitamin B2 is part of coenzymes flavinadenominemononucleotide(FAD) and flavinmononucleotide(FMN), plays a key role in oxidative metabolism.

Source
A small amount is found in many foods. Good sources are meat, fish, offal, vegetables, milk, cheese, eggs, whole grain cereals. The recommended daily dose for adults: 1.2 to 1.5 mg

Deficit
Deficiency of food is sparse, there is often secondarily as a result of failure of malabsorption, enterocolitis, celiac disease, chronic hepatitis in children is often a broad-spectrum antibiotics. Clinical picture : seborrheic dermatitis, conjunctivitis , sometimes keratitis , photophobia, impaired growth, angular cheilitis , peeling lips, mucous membranes (cheilosis), atrophic glossitis, dysphagia, often normocytic normochromic anemia and bone marrow hypoplasia. Laboratory evaluation: decreases secretion of vit. B2 below 32 mg/24 h, decreased concentrations of glutathione and glutathione reductase in erythrocytes.

Surplus
Signs of excess are not known.

Related articles

 * Fat Soluble Vitamins
 * Water Soluble Vitamins