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Does High-fiber foods Affect Vitamin B2?
May affect absorption or how you feel
The short answer
Riboflavin absorption requires adequate contact time in the upper GI tract. High fiber accelerates transit and reduces absorption.
How to arrange timing
Take riboflavin at least 1 hour apart from high-fiber meals.
Reference
Reference noted for this food and supplement combination: NIH ODS 2024
Important context
The effect can also change with food amount, supplement dose, product formulation, health conditions, and medication use. Ask a doctor or pharmacist first if you take medication, are pregnant or breastfeeding, or have a chronic condition.