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Why is it important?
Overall evidence in long-term studies does not support negative impact of condensed tannin consumption on iron absorption and outcomes.
Perspectives
Read the Original
This page is a summary of: The Impact of Tannin Consumption on Iron Bioavailability and Status: A Narrative Review, Current Developments in Nutrition, January 2017, American Society for Nutrition,
DOI: 10.3945/cdn.116.000042.
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Resources
Long-Term Dose-Response Condensed Tannin Supplementation Does Not Affect Iron Status or Bioavailability
Kudos page for a study conducted focusing on tannins.
Salivary proline-rich protein may reduce tannin-iron chelation: a systematic narrative review
Systematic literature review on tannins and salivary proline-rich proteins.
Salivary cystatin SN binds to phytic acid in vitro and is a predictor of non-heme iron bioavailability with phytic acid supplementation in a proof of concept pilot study
A study that supplemented with phytic acid.
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