High leels of heme iron in the diet raised the risk of deeloping gall stones by 21 percent, whereas high leels of non-heme iron seemed to hae no effect.

• 饮食中高水平的血红素铁使胆石的发生率增加了21个百分点，而与此同时高水平的非血红素铁似乎没有这种效果。