Shift workers might want to skip high-iron foods at night

[Northerner]

Workers punching in for the graveyard shift may be better off not eating high-iron foods at night so they don’t disrupt the circadian clock in their livers. "Iron is like the dial that sets the timing of the clock," the lead researcher says. "Discovering a factor, such as iron, that sets the circadian rhythm of the liver may have broad implications for people who do shift work."

http://www.sciencedaily.com/releases/2014/10/141021134825.htm