“Hematocrits and hemoglobin levels were lower in nickel-deprived than in nickel-supplemented rats only when iron was supplemented at low levels as ferric sulfate.”
“When ferric sulfate was fed, an interaction between nickel and iron affected the hematocrit, hemoglobin level and plasma alkaline phosphatase activity which did not occur when a mixture of ferric and ferrous sulfates was fed.”