It has taken me a REALLY long time to get back to updating on PKU. The last few months have been very busy!!! So this post is pretty much going to explain how a day runs for the girls as far their food goes. I hope it makes sense, I am not good at explaining how it works…….. sorry :/
So first thing in the morning, every morning we make “special milk” for the girls, or that’s what we call it anyway. Its actually an amino acid replacer. It comes as a powder and then we weigh out the prescribed amount and mix it with the right amount of water and there you have it…… “special milk”! Sadly the girls don’t particularly care for their milk and some days it’s a struggle to say the least getting them to drink it. I came across another pku blog and a mother was talking about the “special milk” and she couldn’t have said better how I feel. Her words were, “It’s a strange feeling to be extremely bitter and profoundly grateful for something all at once.” I am SO SO grateful we have this medicine for the girls but I often find myself being upset about it. I wish so badly it was like most other medications and you could just take a pill instead of having to drink it ALL day long!! Anyway……. this is why their amino acid replacer is so important. They will take this medication for the rest of their lives, it provides them with over half of the protein they need to grow and develop each day but it has been modified so there bodies can metabolize it.
To illustrate, the minimum protein requirement for most toddlers is 16 grams of protein per day. My girls can have no more then 6 grams of protein per day and the rest has to come from their amino acid replacer. As Taylor and Shaylee grow they will still not be allowed more than 6 grams of protein per day, even though daily requirements for most people increase to the 50+ grams of protein per day into adult hood. People with PKU literally plan their day around what's on the menu.
Ok, I had a lot of people ask me after reading my last post about PKU why my math skills were so important when dealing with PKU………. now its time to explain that but first I need to introduce you to two of my best friends!!!!
A gram scale and the Low Protein Food List for PKU. Not a day goes by that we don’t use these. We would be VERY lost without them!
So this is how meal time works. The girls are each allowed so many milligrams of phenylalanine each day. Sadly their PHE (phenylalanine)tolerance is not the same. We can track their PHE intake two ways. One way is by keeping track of how many milligrams of PHE they eat, or the other way is by counting the PHE in exchanges. 15 milligrams of PHE = 1 exchange. We count in exchanges at our house because it seems to be easier teaching foods to the girls by the number of exchanges it holds rather than all of the milligrams of PHE it contains. So like I said the girls have a prescribed amount of PHE per day, they need to eat all of the prescribed amount each day but they can not go over the prescribed amount. Am I making any sense????? I sure hope so!!
So these is where the book, the scale and the math come into play. The book has everything put into different sections for me so its usually pretty easy to find what im looking for. When I find the food item im looking for I go to the column “Mg Phe/Gm. food” this is the information I really need to know. It tells me how much PHE is in 1 gram of food. Now I weight my food on my handy dandy scale and the I reach for my lovely calculator. Its time to figure out how big of a serving I want to give the girls depending on how much PHE I want them to have at that particular time. If the girls don’t eat everything I dished up for them I reweight the food and recalculate what they actually ate. It would look a little something like this……
Let say for breakfast they wanted a banana and I gave them 80 grams but they only ate 54 grams this is what I would do
80gm banana = 54gm banana
30.4 mg Phe X
Multiply 54 times 30.4, then divide by 80 to get the amount of PHE consumed, then divide 20.25 (X) by 15 to get the exchange amount!!!! Now when its one piece of food they are eating its pretty simple to figure out but when you are making meals where different foods are added together like a casserole it can get kind of tricky. You would figure out the “Mg Phe/Gm. food” the same as like the banana for all of the foods going into the casserole get a total weight of the casserole, divide that by the amount of phe it contains and then divide that by 15. The number you would get would tell you how many grams of casserole = 1 food exchange……….. are you with me????? Like I said its confusing and I cant explain well!
So as you can see math has EVERYTHING to do with handling PKU. As far as how meal time works, we try to plan a head so we know how many exchanges we want to use that given day for breakfast, lunch, dinner and snacks!!! It doesn’t always go as planned because unexpected things like birthday treats at school, or the girls just needing a snack that wasn’t planned into the day always come up but we make it work!!!
I hope I explained good enough that you understand a little about how PKU is dealt with on a day to day bases. And I apologize for how long the post is!!


