Apparently, coffee consumption can inhibit steel intake and also in some situations is even linked to stole deficiency anemia, as Wikipedia says. It is unclear to me, however, just how this happens. On the page about health results of caffeine, i can"t uncover anything around iron deficiency anemia. Some health and wellness blogs insurance claim that both caffeine and other substances inhibit steel intake, but I couldn"t uncover reliable resources (e.g. Various other than forum discussions and also fact sheets choose this which were compiled through a company selling coffee substitute) yet.

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What building material in coffee inhibit the steel intake to which amount, and also is decaffeinated coffee more beneficial in that respect than consistent coffee?

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Does coffee inhibit the absorption of iron? The answer shows up to be yes (see links and references below). So does tea. Keep in mind that this does not need to do through caffeine, however rather polyphenols, phytates discovered in them. So, my answer would certainly be that both regular coffee and decaf coffee inhibit iron, however I don"t know whether one go so much more than the other. Also, if you add milk to your coffee, that may also have some effect, since calcium inhibits steel absorption.

It additionally depends on even if it is it"s heme iron (mostly native animals) or non-heme steel (from plant sources, iron strengthened foods). This problem if you eat primarily a vegetarian diet, because the encourage intake for non-heme iron is 1.8 times, contrasted to those who eat meat . NIH"s IronDietary Supplement fact Sheet compiled a great literature testimonial on iron intake. See additionally CDC.


Hurrell RF, Reddy M, cook JD. Inhibition of non-haem iron absorb in male by polyphenolic-containing beverages. Br J Nutr. 1999;81:289–95.

Layrisse M1, García-Casal MN, Solano L, Barón MA, Arguello F, Llovera D, Ramírez J, Leets I, Tropper E. Iron bioavailability in humans from breakfasts enriched v iron bis-glycine chelate, phytates and polyphenols. J Nutr. 2000 Sep;130(9):2195-9.

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Zijp IM1, Korver O, Tijburg LB. Result of tea and other dietary factors on stole absorption. Crit Rev Food Sci Nutr. 2000 Sep;40(5):371-98.