In this chapter, Judy starts experiencing the consequences of too little nutrient knowledge early in her life on TPN. Back in the late 1960s/early 1970s, not much was known about Vitamin D given intravenously; because of Judy, they discovered the requirements are much less in TPN than in a normal food diet. At first, it seemed she’d be OK. But then in the 1980s, she began breaking bones. And soon her hair began falling out, for reasons unknown. Her health care team spent the decade trying to learn more, trying to help her.