This study showed that manganese directly competes with Iron absorption and is dose dependent. The way I understand this seems to mean if 2mg of manganese is competing with 3mg of iron, the manganese will allow only 1mg of iron to be absorbed. Zinc, on the other hand, only tends to reduce the...
Peat says to pair proteins with fruit/sugar always. However most fruits have vitamin c and if paired with meats, increase iron absorption. Then we have to have the coffee/tea to reduce the absorption.
Would it be just as effective to just not have fruit when eating red meats?