B2 Dosage Guide

Recommended daily intake by age and gender — based on NIH Dietary Reference Intakes.

Our assessment

Based on the provided data, riboflavin has not been shown to cause any harm, indicating a strong safety profile. No adverse event reports from FDA data are available in the provided information to cite.

How it works

Riboflavin, also known as vitamin B2, is an essential nutrient that helps the body break down carbohydrates, proteins, and fats to produce energy. It also supports the function of other B vitamins and is important for maintaining healthy blood cells NIH ODS ↗.

Safety profile

Data not available. The provided information states that riboflavin has not been shown to cause any harm. No specific side effects or report counts from FDA data are included in the provided data.

Our recommendation

Riboflavin is not known to interact with any medications based on the provided data. However, it is always important to tell your doctor, pharmacist, and other health care providers about any dietary supplements and prescription or over-the-counter medicines you take FDA FAERS ↗.

AI-assisted analysis. Data sourced from NIH ODS.

Understanding RDAs

Dietary Reference Intakes (DRIs) are a set of reference values used to plan and assess nutrient intakes of healthy people. They include:

  • RDA (Recommended Dietary Allowance) — The average daily intake sufficient to meet the nutrient requirements of nearly all (97-98%) healthy individuals.
  • AI (Adequate Intake) — Established when evidence is insufficient to develop an RDA. Based on observed nutrient intake by healthy people.
  • UL (Tolerable Upper Intake Level) — The maximum daily intake unlikely to cause adverse health effects. Exceeding the UL increases the risk of toxicity.

Values vary by age, gender, and life stage (pregnancy, lactation).

Source: National Academies of Sciences, Engineering, and Medicine

Recommended Dietary Allowance

B2 RDA / AI by Age and Gender
Life StageRecommended Amount
Birth to 6 months0.3 mg
Infants 7–12 months0.4 mg
Children 1–3 years0.5 mg
Children 4–8 years0.6 mg
Children 9–13 years0.9 mg
Teen boys 14–18 years1.3 mg
Teen girls 14–18 years1.0 mg
Men1.3 mg
Women1.1 mg
Pregnant teens and women1.4 mg
Breastfeeding teens and women1.6 mg

Source: National Academies of Sciences, Engineering, and Medicine