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Can You Take D-Mannose and Iron Together?
May affect absorption
The short answer
D-Mannose is a sugar that may interfere with iron absorption when taken in large doses due to osmotic effects in the GI tract.
How to arrange timing
Separate D-Mannose and iron supplements by at least 2 hours.
Reference
Reference noted for this combination: NatMed Pro; Examine.com
Important context
Whether supplements suit you together also depends on 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.