This could be a gesture of confidence in the official, as with US President George W. Bush's refusal of his Secretary of Defense Donald Rumsfeld's twice-offered resignation during the Abu Ghraib prison abuse scandal.
Goji berries are another healthy food source of iron. Goji berries have been measured to have more than 15 times more iron than spinach. Excess intake of iron has been associated with Alzheimer's disease, Parkinson's disease, liver cancer, and an increased risk for cornary artery disease.
Several food sources of iron are listed in Table 2. Some plant-based foods that are good sources of iron, such as spinach, have low iron bioavailability because they contain iron-absorption inhibitors, such as polyphenols [ 15, 16 ].