I remember when I first started seeing my dietitian on my return to the diet, sounds a bit like a movie title! PKU and the return of the Diet!! She explained to me that to help maintain consistently low blood Phe levels, management will involve a three-pronged approach known as the 3 R’s: Record, Restrict, and Replace. I must Record the amount of Phe I consume, Restrict my diet to the right amount of low-Phe foods, and replace those higher-Phe foods with low-Phe alternatives, such as Phe-free protein supplements like Lophlex and Add-ins. I know this type of management is not a cure, but it has been effective in helping to prevent many of the symptoms of PKU in myself such as the drowsiness and bad temper. So remember the 3 R’s: Record, Restrict, and Replace.