This website is intended for residents of the United States of America interested in Phenylketonuria, also called PKU.

Being a teen with PKU

Develop healthy habits that work within your everyday life.

Life as a teen is already busy and demanding—with school, friends, sports, and everything else you’re into. PKU adds even more to your plate. With smart planning and the right approach, you can stay on top of your PKU.

Girl with arms folded

PKU: What it means for you

  • PKU can cause Phe buildup

    PKU makes it harder for your body to break down Phe. Phe is found in all foods that have natural proteins. This includes meat, dairy, nuts, beans, and lots of other everyday foods.

  • Too much Phe = brain fog

    When Phe levels get high, it becomes harder to focus, remember things, or stay in a good mood. People say it can feel like their brain is in slow motion.

The good news: You can manage this

With the right diet, medical food/formula, or medication, most people can reach expert-recommended Phe levels. This can reduce the symptoms of PKU so you can feel more like yourself.

Taking charge of your PKU

As a teen, you’ll begin to take on a bigger role in managing your PKU. Create routines that work best for you. This will give you more freedom at school, with friends, and anywhere life takes you.

Here are some tips to help you get started:

  • Get involved in your PKU care

    Start learning more about your condition, your diet, and why staying on track matters for your future. Be sure to ask questions at clinic visits—your clinic team wants to partner with you, along with your parents.

  • Set goals and stay on track

    Work with your clinic team to set your treatment goals, which can include achieving a target Phe level. Then check in regularly to see your progress and make any adjustments if needed.

  • Start making PKU-friendly meals for yourself

    Try planning and preparing your own PKU-friendly meals or snacks. The more you practice, the easier it will be to manage PKU when you’re on your own—whether that is at college, at a job, or while traveling.

  • Balance PKU with your life

    You’re way more than someone with PKU—you’re an athlete, artist, gamer, or whatever makes you unique. Keep pursuing your interests and goals while working to make your PKU care a natural part of your daily routine.

PKU and your social life

Being a teen is all about trying new things, making memories, and finding your crew. Most importantly, it means being yourself—PKU and all. Focus on finding the people who get you, and make you feel comfortable being exactly who you are.

Here are some pointers to keep in mind:

Be upfront about your PKU

Real friends will want to understand what PKU means for you. Start the conversation early—explain the basics of your condition in a casual way, like, “I have this condition called PKU, so I need to be careful about what I eat because it can affect how I feel.”

Help your friends support you

Most people want to be supportive—they just don’t know how. Let them know what helps you feel included, like giving you a heads up about food at parties or checking in with you if you’re having a hard time with symptoms.

Cook up a better understanding of PKU

When friends help you make PKU-friendly food, they can see how good your meals actually are, instead of focusing on what you can’t eat. Invite them over to cook your favorite PKU-friendly dish or bake some safe treats.

Set boundaries with people who don’t get it

Some people might ask negative questions, make jokes, or not give you the understanding you deserve. That’s a form of bullying, and it’s totally okay to shut that down. You can explain how you feel, change the subject, or simply walk away. Reach out to a trusted adult, teacher, or counselor for help and support.

Connect with the PKU community

Talking to other teens with PKU makes you realize you’re not alone. You can get real advice on topics like navigating friendships and managing treatment. Look for PKU groups or camps in your area, and join online communities that truly understand you.

Start connecting

Food for thought

PKU-friendly eating is about avoiding or limiting food high in Phe, such as meat, fish, eggs, nuts, beans, and most grains. You can still enjoy fun and delicious meals while steering clear of these ingredients.

Mean Green Burgers

PKU Pizza

Blackberry Pancakes

Check out our full menu of delicious recipes.