Riboflavin (Vitamin B2) | Riboflavin B2

 Riboflavin (Vitamin B2)

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Sometimes known as vitamin G

Maintenance of vision, hair, nails, skin

Healthy nervous system

Energy production

Antioxidant (cofactor of glutathione reductase)

Maintains mucous membrane linings of the respiratory tract, digestive tract, circulatory and excretory tracts in conjunction with vitamin A

Aids conversion of the amino acid tryptophan to B3 in conjunction with B1 and B6.

Medicinal Uses

Important to take with other B vitamins

Prevention of visual problems – cataracts

Relief of childhood eczema

Used with – MS, Neuritis, Vertigo, Parkinson’s disease,

Dermatitis, Ulcers, Acne

Hyperthyroidism, Malabsorption,

Stress of injury or surgery



Increased Risk of Deficiency

Periods of rapid growth: childhood and adolescence, pregnancy and lactation

Malabsorption (gastrointestinal and biliary obstructions, chronic diarrhea, infectious enteritis)

Medications: thyroxine, oral contraceptives, phenothiazines, barbiturates, antibiotics

Heavy alcohol use

Chronic illness, fever, and cancer

Signs and Symptoms of Deficiency

Oily ruff, scaly, painful, and itchy patches on the skin around the nose, ears, mouth

Cracked lips

Vaginal itching

Hair and weight loss

Inability to urinate

Digestive disturbances




Smooth, purplish-coloured tongue, sore throat

Eyes: Redness, burning, blurred vision, gritty feeling, fatigued and light sensitivity

Anaemia with decreased production of red blood cells Lethargy, depression, personality changes

May increase risk of developing cataract

Symptoms of vitamin B6 and niacin (vitamin B3) deficiency (decreased activation of vitamin B6 and reduced conversion of tryptophan to niacin)

Long term – liver damage


UV light

Oral contraceptive

Sulphur drugs


High stress

Need more B2 in pregnancy

Toxic Effects

No known toxic effects. However prolonged high doses leads to urinary loss of other B vitamins

Good Dietary Sources

Liver, Mushrooms, Cow’s milk, Brewer’s yeast, Spinach and other leafy greens, Yogurt, kidney, poultry, almonds, sesame seeds, sunflower seeds, lima and soy beans, whole grains, foods high in calcium and B2, Dandelions, Chickweed, Watercress, Fathen

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Deborah Harper

Article by Debbie Harper

Debbie Harper is a self-published author and an accomplished blogger. She's the founder of www.happyhomesnz.com and the author of the book “The Number #1 Rule for a Long and Healthy Life”. If you like this post, you can stay up to date with the latest information from www.happyhomesnz.com by subscribing via RSS, or receive articles directly in your inbox. Then click here to download a free report on "The Number #1 Rule for a Long and Healthy Life".