Does High-fiber foods Affect Vitamin C?

May affect absorption or how you feel

The short answer

Fiber can physically trap vitamin C and accelerated gut transit reduces its absorption window in the small intestine.

How to arrange timing

Take vitamin C 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.