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Does Tea Affect Manganese?
May affect absorption or how you feel
The short answer
Tea contains high levels of manganese itself, and tannins can interfere with manganese supplement absorption, risking both under- and over-intake.
How to arrange timing
Account for tea's manganese content and separate supplements by 2 hours.
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.