5. What affects the uptake?
Coffee, tea, milk and whole-grain bread have a lessening effect on iron uptake, while Vitamin C, for instance in orange juice, has a positive effect.
The heme iron in meat courses is being absorbed through a separate mechanism and is practically uninfluenced by what is eaten at the same time.
The calcium in milk products is also regarded as having a generally lessening effect on iron uptake.
The uptake of heme iron is not affected by simultaneously ingested food, drink or medication, since it follows a different and separate parallel uptake mechanism.