
About three years ago, I embarked on yet another journey back into the world of PKU. I call it a ‘world of PKU’ because it often feels like I’m living in an alternate reality, since stepping away from all the forbidden food that I had come to call normal.
Before I started this journey a few years ago, I had once again been away from the diet for about 10 years. My binge eating had peaked during this time, and I had gained over 10 stone in weight. Not only was I struggling to buy clothes to fit me, but I was continually growing out of them. It was like being a teenager all over again.
Consequently, my health deteriorated. I wasn’t sleeping properly at night; I was tired and struggling through my days at work, having to stop and nap during my hour-long commute to and from work. I even got to the point I was having to sleep at work during the day. I was having to hide my work van in the country somewhere, just so I could safely sleep without being spotted. I was a mess! Eventually, after having to leave my job due to ill health, I was diagnosed with ‘Severe Obstructive Sleep Apnea’. This is when your airway collapses completely (due to being overweight, particularly around the neck) blocking your airways during sleep and forcing your body to wake up. After the sleep investigation, I was told that I had stopped breathing on average 87 times an hour, throughout the night! One of the worst cases they had seen in that hospital.
Since my diagnosis, I have been using a CPAP machine, which delivers a constant flow of air through a tube and mask; creating enough pressure in your airway to prevent the tissue from collapsing. The CPAP machine changed my life overnight and allowed me to return to normal sleeping patterns and daily routines. Now the CPAP machine goes with me wherever I sleep and will continue to until I can reduce my weight sufficiently and stop my airways from collapsing.
The best thing about trying (and failing) to return to the PKU diet as many times as I have is learning some big lessons along the way. I was adamant I wouldn’t fall into the same traps again. Previously, I always started the PKU diet feeling incredible in days, and within a fortnight I was replanning my whole life around the new me. Simply because I realised I could achieve so much more; and I wasn’t wrong, I could achieve far more. At least, until I stumble away from the diet and then my entire world implodes around me. Leaving me in chaos, unable to cope with my current situation.
This time when I returned to the diet, I had a very different approach. I started off being very realistic and with a new mindset. In the past, I have made the same mistake of getting on the diet, feeling fantastic, and immediately changing everything in my life, because I was feeling invincible. I would be either chasing a promotion at work or studying for a new career. But all I was achieving was to set myself up for failure. This takes me back to my last blog ‘Living with PKU‘, where I talked about not being able to consistently fulfill my potential.
Being realistic and knowing my limitations has been the key to me not putting too much pressure on myself, whilst returning to diet this time. I knew there were going to be tough days ahead, where sticking to the strict diet was going to be impossible for me. I had to learn to accept that. I set off with the mentality that no matter how bad a day had been, tomorrow was a new day, with a clean sheet. Regardless of the previous day, I would always get up and have my supplement and my daily allowance would start from zero.
I also had to accept that following a bad PKU diet day, would probably mean achieving very little or even nothing the next day. This has been extremely important for me, and over time it has brought home that a poorly managed PKU diet one day, equals low productivity the next. This is the cycle that I need to break to consistently fulfill my potential.
Being kind to myself has given me time to adjust to the changes of returning to the PKU diet. It’s only recently I have realised that I am starting to choose not to stray from the diet, especially at times when I would have previously caved into temptation.
There has been a lasagne in the fridge for 2 days now, left from my non-PKU daughter’s dinner. It’s winked at me several times, but it’s still there. Two years ago, that Lasagne wouldn’t have even made it into the fridge! I’ve chosen to leave it there on more than one occasion, and this is because I had important things to do the next day, and I knew I needed to have a clear head so I could be the best version of myself. Enabling me to fulfill my potential.
I was very foolish all those years back to think I could flick a switch, and just return to the PKU diet. It is a real challenge and for anyone trying to return to a PKU life. I urge you to not jump in feet first, and understand that you’re going to feel like you can take on the world, and it is true; but at the start only on the good days. Be aware that you can easily bite off more than you can chew at the very beginning. Keep life as simple as you possibly can. Work on building that consistency. Work on choosing the diet for a better you against the temptation of throwing it all away for a bad meal.

It’s been 15 years since I first tried to return to diet, and finally, I am starting to look at my future. I have achieved more in the last 12 months than I had in the last 12 years! I’m thinking of returning to studying in the future, but I know I am not ready yet. Instead of rushing into it, I am taking time to understand where I need to be to achieve my future goals. The PKU diet will allow me to reach my full potential, but now, I understand I must accept the PKU diet completely, to fulfill it.
Some years ago, I felt very offended when a PKU consultant said “You don’t need Kuvan. The diet works!” in reply to me asking him about Kuvan trials, during a routine appointment. I now understand what he probably meant; the diet does work (but only if you let it). However, it’s not that simple. For many of us, it’s taken years, even decades to get to grips and understand our battles, not just with the restrictive diet itself; but our lifestyles, being released from the diet at various ages, eating disorders, and mental health. The comment that the consultant made to me had a huge impact on my relationship with PKU, and it set me back several years. It seems to me that some PKU consultants and support teams are missing the bigger picture completely of what life is really like as a PKU adult.
I truly hope this helps some of you who are struggling to return to diet, see it from a fresh perspective. No one tells us how to return to the PKU diet, and it’s so much more than just giving up certain foods and taking a supplement.
Thank you for continuing to follow my blog. I am humbled to see my story reaching 47 different countries during these last eight months.
Please stay safe and I look forward to reading your comments.
Thanks
Dan










