You must read and accept the disclaimer to use this site. Updated for monthly, 2011

You must read and accept the disclaimer to use this site.

Vitamin B2, riboflavin

Vitamin: B2, riboflavin

Daily Value: 1.7 mg

Hazardous level: safe at more than 10xRDA

Average intake in US diet: 2.08 mg

Function: functions primarily as a component of two flavin coenzymes - Necessary for the use

of fats, carbohydrates and protein in energy production; aids in formation of antibodies and red

blood cells; healthy skin

DOSAGE RATIONALE:Like vitamin C, B2 is safe. Dror indicates that elderly may need higher

levels of riboflavin because of decreased absorption. This puts everyone into the weight adjusted

3 mg level.

KEY NOTES AND REFERENCES:

Curz, A., et al "Longitudinal changes in the intake of vitamins and minerals of elderly

Europeans", Eur J Clin Nutr 50: S77-85 (1996)

658 elderly men and 731 elderly women born 1913-18: "A significant decrease in the

median intake of vitamin B1, B2, B6, C or iron was observed..."- low B2 intake in elderly

Dror, Y. et al, "Estimation of vitamin needs-riboflavin, vitamin B6, and ascorbic acid-according

to blood parameters and functional-cognitive and emotional indices in a select well-established

group of elderly in a home for the aged in Israel", J Am Coll Nutr 15: 481-88 (1996)

ave. age over 80 "vitamin needs... (mg/day) of >150 for ascorbic acid, >3 for riboflavin,

>3 for vitamin B6"

van der Wielen, R. P. , et al, "Dietary intakes of energy and water-soluble vitamins in different categories

of aging", J Gerontol 51: B100-7 (1996)

"Dietary intakes of [thiamin, riboflavin, B6, and C] were below the minimum requirements in

almost half of the nursing home residents" - dietary intakes below RDAs in half of nursing

home residents

Benton D; Haller J; Fordy J, "The vitamin status of young British adults", Int J Vitam Nutr Res

67(1):34-40 (1997)

"thiamin, riboflavin, pyridoxine, ascorbic acid, retinol, alpha-tocopherol, folic acid,

cyanocobalanin, carotene and biotin status were assessed in a sample of 243 young

British adults... The status of ascorbic acid, cyanocobalamin, alpha-tocopherol, folic acid

and in males retinol, was adequate in the majority of cases. In the cases of riboflavin and

pyridoxine the status of a substantial minority was either borderline or deficient. The

thiamin and biotin status of a minority of both sexes, and retinol in the females, was

marginal" In riboflavin the status of a substantial minority of 243 British students was

either borderline or deficient.

WHITE PAPER REFERENCES FOR STAY WELL FORMULATIONS

Chandra, R. K., "Effect of vitamin and trace-element supplementation on immune responses and

infection in elderly subjects", Lancet 340: 1124-27 (1992)

study of 96 people, had 23 vs. 48 days of illness, recipe 400 iu retinol, 16 mg beta-

carotene, 2.2 mg thiamin, 1.5 mg riboflavin, 16 mg niacin, 3 mg B6, 400 mcg folate, 4

mcg B12, 80 mg C, 4 mcg D, 44 mg E, 16 mg Iron, 200 mg Ca, 100 mg Mg