But without a legislative framework, and with the grassroots origins of pot as a mood-altering folk remedy, companies are left guessing. Iron is an essential element the body requires to produce hemoglobin, the protein found in red blood cells that's responsible for transporting oxygen to tissues in the body. The current waiting period is eight weeks. It's possible to have normal hemoglobin levels, but to have low iron stores overall, says Canadian Blood Services (CBS). The new iron guidelines mean more donors are needed. What started as a routine ultrasound became complicated when expectant mother Margaret Boemer, of Plano, Texas, was told her unborn child had a rare condition and needed surgery to survive. A sacrococcygeal teratoma is a tumour that develops before birth and grows from a