Riboflavin
This is what the ingredient is.
Riboflavin (Vitamin B2) is a water-soluble vitamin naturally found in milk, eggs, and green vegetables. Synthetically produced for food fortification.
Here is why it shows up on the label.
Nutrient fortification and natural yellow-green colorant. Used in cereals, bread, energy drinks, and vitamin supplements. Essential nutrient.
Here is what food agencies say.
FDA GRAS as nutrient and color. No specific ADI as essential vitamin. Approved globally in US, EU (as E101), Canada.
Here is what research has found.
Essential nutrient required for energy production and cellular function. Well-studied with no significant toxicity. Water-soluble with excess excreted in urine. RDA: 1.1-1.3 mg/day.
Here are a few things worth knowing.
Extremely safe - no known toxicity even at high doses. Excess excreted in urine, causing bright yellow color. No upper intake level established. Generally beneficial.
Sources
- FDA Nutrient Requirements
- NIH Riboflavin Fact Sheet
- Recommended Dietary Allowances
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.