vitamin B₂ deficiency

Vitamin B2 deficiency, also known as ariboflavinosis, is a condition resulting from inadequate intake of riboflavin (vitamin B2). This deficiency is unlikely to occur in isolation and often accompanies deficiencies in other nutrients.1234

Symptoms of ariboflavinosis can include:
* Cracks and sores at the corners of the mouth (cheilosis)
* Inflammation and a magenta color of the tongue (glossitis)
* Reddening of the lips
* Ocular disturbances, such as increased blood vessel growth in the eyes, eyestrain, and light sensitivity
* Greasy, scaly skin inflammation

Riboflavin is essential for various metabolic processes, including the oxidation of carbohydrates and amino acids. Good dietary sources include milk, eggs, leafy vegetables, kidney, and liver.4