Saturday, May 2, 2020

Riboflavin or Vitamin B2 : Sources, Functions, Daily Requirement and Deficiency Symptoms

Riboflavin or Vitamin B2 : Sources, Functions, Daily Requirement and Deficiency Symptoms


Riboflavin or Vitamin B2 is a Water Soluble Vitamin that is needed for growth and overall health of human body. It is a member of the Vitamin B complex group vitamins. Riboflavin Vitamin B2 is also named as Vitamin G.

Sources of Riboflavin or Vitamin B2
Vitamin B2 (Riboflavin)

It has a fundamental role in cellular oxidation. It is also a co-factor in a number of enzymes involved with energy metabolism, i.e. it helps the human body to break down the carbohydrates, the proteins and the fats to produce energy. Riboflavin Vitamin B2 allows oxygen to be used by the body. Riboflavin Vitamin B2 is also used for the development and function of the skin, lining of the digestive tract, blood cells and other vital organs. Vitamin B2 is also important for the health of eyes. A proper diet can meet the daily requirement of Riboflavin Vitamin B2 by the body easily.

Let us study the food sources of Riboflavin Vitamin B2, it's functions and deficiency symptoms in our body.


Sources Of Riboflavin Or Vitamin B2 :

As Riboflavin Vitamin B2 is a water soluble vitamin, it is generally flushed out of the body daily and cannot be stored in the body.

So it is obvious to be restored everyday through diet. The best way to intake Vitamin B2(Riboflavin) in our body is by eating foods that are rich in Riboflavin Vitamin B2.

The rich sources of Riboflavin Vitamin B2 are –
  • Eggs
  • Milk and other dairy products
  • Meat and poultry (turkey, chicken, beaf)
  • Green leaf vegetables (parsley, kelp, asparagus, sage, spinach, sprouts, dandelion greens, watercress, avacodo etc)
  • Beans (lime beans, navy beans, peas, soya beans)
  • Mushroom
  • Pumpkin
  • Sweet potatoes
  • Broccoli
  • Brussels
  • Whole grain breads, enriched breads, wheat bran
  • Yeast
Also, some bacteria in our large intestine produces free riboflavin that is absorbed by the large intestine. More riboflavin are produced after the ingestion of vegetable-based than meat-based foods.


Daily Requirement Of Riboflavin Or Vitamin B2 :


Recommended daily requirement of Riboflavin Vitamin B2 are as follows –
  • For infants upto 12 months old – 0.4 mg
  • For children between 1 and 3 years old – 0.5 mg
  • For adult and children over 4 years old – 1.3 mg
  • For pregnant women and lactating women – 1.6 mg






Functions Of Riboflavin Or Vitamin B2 :


  1. Riboflavin or Vitamin B2 is needed in growth of body and overall good health.
  2. Riboflavin or Vitamin B2 participates in the metabolism of protein.
  3. Riboflavin or Vitamin B2 controls the activities of those endocrine glands which are involved in the metabolism of carbohydrates.
  4. Riboflavin or Vitamin B2 has a fundamental role in cellular oxidation. It acts as co-enzyme FMN in mitochondria.
  5. Riboflavin or Vitamin B2 is also involved in antioxidant activities. It controls the play of free radicals. It helps the prevention of heart diseases and cancer.
  6. Riboflavin or Vitamin B2 plays an important role in maintaining the integrity of mucocutaneous structure. It also helps in development and functions of skin, lining of the digestive tract, blood cells and other vital organs.
  7. Riboflavin or Vitamin B2 is also used in as preventive of severe migraine attacks.
  8. Riboflavin or Vitamin B2 is a co-factor for the enzyme glutathione which is an important antioxidant in the eyes. It prevents to develop cataracts.
  9. Riboflavin or Vitamin B2 performed a supportive role in treating sickle cell anemia.
  10. Riboflavin or Vitamin B2 is useful in acne, dermatitis, arthritis and eczema.
  11. Vitamin B2 also helps to repair damaged tissues and allow wounds to heal more quickly.

Deficiency Symptoms Of Riboflavin Or Vitamin B2 :


Deficiency of Riboflavin or Vitamin B2 is called as ariboflavinosis. However, riboflavin deficiency is very rare and if someone is suffering from it, it is obvious that they may be suffering from the deficiency of many other nutrients. The main symptoms of Vitamin B2 deficiency are –

Due to deficiency of riboflavin or vitamin B2, damage to the nervous system, skin and eyes may be formed.

The growth of the body is disrupted due to deficiency of Vitamin B2 or Riboflavin.

Deficiency of Riboflavin or Vitamin B2 may cause inflammation and small cracks in one or both corners of the lips. It is called Cheilosis.

Deficiency of Riboflavin or Vitamin B2 forms Glossitis having symptom like inflammation of tongue.

Weakness and fatigue, change in mood are also the symptoms formed due to the deficiency of Vitamin B2.

Deficiency of Riboflavin or Vitamin B2 develops many eye problems also such as (i) formation of hematoma in the cornea, (ii) formation of cataract, (iii) photophobia etc.

Some studies indicate that riboflavin deficiency may be a factor in causing preeclampsia which is a condition that causes high blood pressure in late pregnancy.

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