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  • Can green tea affect iron absorption?

    Questioner:Oliver Green 2018-04-06 10:04:04
The most authoritative answer in 2024
  • Zoe Walker——Studied at the University of Melbourne, Lives in Melbourne, Australia.

    As a dietary expert with a focus on nutrition and health, I'm often asked about the interactions between various foods and nutrients. When it comes to green tea and iron absorption, there is indeed a known interaction that can affect the body's ability to absorb this essential mineral.

    Green tea contains compounds called tannins, which are naturally occurring polyphenols. Tannins can bind to non-heme iron, which is the form of iron found in plant-based foods, and reduce its absorption. This interaction can be significant, especially when green tea is consumed with a meal that is high in non-heme iron.

    However, the effect of green tea on iron absorption can be mitigated by adjusting the timing of tea consumption. Drinking green tea between meals rather than with meals can help to minimize the interaction with iron. Additionally, consuming foods rich in vitamin C alongside iron can enhance iron absorption, as vitamin C acts as a reducing agent that helps to keep iron in a form that is more readily absorbed by the body.

    In summary, while green tea can affect iron absorption due to the presence of tannins, this effect can be managed by adjusting the timing of tea consumption and including vitamin C-rich foods in the diet.

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  • Ethan Gonzales——Works at the International Committee of the Red Cross, Lives in Geneva, Switzerland.

    Drinking green tea does interfere with nutrient absorption. Anti-oxidants such as polyphenols in green tea can bind iron, inhibiting its intestinal absorption. You may also have trouble absorbing vitamin B12.read more >>

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