What is the dosage vitamin B2 (riboflavin) supplements?

Adults (18 years and older):

The U.S. Recommended Dietary Allowance (RDA) for adults is 1 milligram for female adolescents (14-18 years old); 1.3 milligrams for male adolescents (14-18 years old); 1.1 milligrams for female adults (older than 18 years); 1.3 milligrams for male adults (older than 18 years); 1.4 milligrams for pregnant women (any age); and 1.6 milligrams for breastfeeding women (any age).

For anemia, 1 milligram has been taken by mouth daily for two months, in combination with iron and/or folate. Five milligrams has been taken by mouth twice daily for eight weeks.

For cancer prevention, the following doses have been taken by mouth: 80 milligrams weekly for up to 20 months; 5 milligrams daily for 100 days; or 5 milligrams daily for up to nine years.

For cognitive function, 25 milligrams has been taken by mouth daily.

For encephalopathy, riboflavin of unknown dose and duration has been taken by mouth.

For headache, the following doses have been taken by mouth: 200 milligrams daily for four weeks; 400 milligrams daily for three months.

For hyperhomocysteinemia, 1.6 milligrams has been taken by mouth daily for 12 weeks.

For preeclampsia, 15 milligrams has been taken by mouth daily for unknown duration.

For riboflavin deficiency (ariboflavinosis), doses of up to 25 milligrams have been taken by mouth for up to 12 weeks. Doses of 0.6-1.2 milligrams have been taken by mouth daily for up to 12 months. Good dietary sources of riboflavin are milk and other dairy products, eggs, enriched cereals/grains, meats, liver, and green vegetables, such as asparagus or broccoli. Riboflavin is easily destroyed by exposure to light (for example, riboflavin in milk stored in clear glass bottles).

You should read product labels, and discuss all therapies with a qualified healthcare provider. Natural Standard information does not constitute medical advice, diagnosis, or treatment.