Vitamin B2 (Riboflavin) daily dose

Co-enzyme functions in numerous oxidation and reduction reactions. Deficiency: Growth, cheilosis, angular stomatitis, and dermatitis. Vitamin B2 food sources: soybeans, spinach, beet greens, tempeh, yogurt, mushrooms, crimini, eggs, asparagus, almonds, turkey.

Vitamin B2 (Riboflavin) daily dose

AgeRiboflavin
mg/day
0 - 6 months0.3
7-11 months0.4
1-3 years0.5
4-6 years0.6
7-9 years0.9
10-18 years
Males
1.3
10-18 years
Females
1.0
Males
19 - 65 years
1.3
Females
19-50 years
(pre- menopausal)
1.1
Females
51-65 years
(menopausal)
1.1
65 + years Males1.3
65 + years Females1.1
Pregnancy1.4
Lactation1.6

Riboflavin  (vitamin  B2)  deficiency  results  in  the  condition  of  hypo-  or  riboflavinosis,  with sore  throat;  hyperaemia;  oedema  of  the  pharyngeal  and  oral  mucous  membranes;  cheilosis; angular  stomatitis;  glossitis;  seborrheic  dermatitis;  and  normochromic,  normocytic  bone marrow.
Because  the  deficiency  almost  invariably  occurs  combined  with  a  deficiency of other B-complex vitamins, some of the symptoms (e.g., glossitis and dermatitis) may result from  other  complicating  deficiencies.  The  major  cause  of  hypo-riboflavinosis  is  inadequate dietary intake as a result of limited food supply, which is sometimes exacerbated by poor food storage  or  processing.  Children  in  developing  countries  will  commonly  demonstrate  clinical signs  of  riboflavin  deficiency  during  periods  of  the  year  when  gastrointestinal  infections  are prevalent.  Decreased  assimilation  of  riboflavin  also  results  from  abnormal  digestion  such  as that  which  occurs  with  lactose  intolerance.  Riboflavin toxicity is not a problem because of limited intestinal absorption.

Foods High in Vitamin B2

FoodAmount(mg)
Whole milk1 cup0.5
Low-fat milk1 cup0.5
Yogurt, low-fat1 cup0.5
Skim milk1 cup0.4
Yogurt1 cup0.1
American cheese1 oz0.1
Cheddar cheese1 oz0.1
Liver3 oz3.6
Pork chop3 oz0.3
Beef3 oz0.2
Tuna0.5 cup0.1
Collard greens0.5 cup0.3
Broccoli0.5 cup0.2
Spinach, cooked0.5 cup0.1
Egg1 each0.2
Macaroni1 cup0.1
Bread1 slice0.1

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