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Dr. Ronald Roth Acu-Cell AI

Iron Absorption: Heme vs. Non-Heme

The Role of Vitamin C in Plant Iron Absorption

  • Enhancement is significant: Vitamin C (ascorbic acid) is one of the most powerful dietary enhancers for the absorption of non-heme iron found in plant-based foods.
  • Chemical conversion: Ascorbic acid acts as a reducing agent, converting ferric iron (which is poorly absorbed) into ferrous iron, a form that is much more readily taken up by the intestinal tract.
  • Chelation: Vitamin C forms a chelate with iron at an acidic pH in the stomach, which remains soluble and available for absorption in the small intestine.

Practical Implications

  • Meal combination: Consuming a source of vitamin C (such as citrus fruits, bell peppers, or tomatoes) concurrently with plant-based iron sources (like spinach, lentils, or beans) can substantially increase iron bioavailability.
  • Inhibitors present: Because plant iron is already subject to inhibition by compounds like phytates and tannins, vitamin C helps to counteract these negative effects and improve overall net absorption.
AI-generated in the approach of Dr. Ronald Roth. Not his own words.
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Connections

Heme iron - connections

Heme iron ->

Plant-source iron - connections

-> Plant-source iron

  • Heme iron - More Absorbable Than (Degree: about 10 times)

Vitamin C - connections

Vitamin C ->

-> Vitamin C

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