- Review the information below
- Watch the video tutorials.
- Join the Facebook group and ask questions of other users and administrators.
- Submit a support request or email us.
Frequently Asked Questions.
What is How Much Phe?
How does it work?
How much does it cost?
What do all these icons mean?
- Reset data
- Eat it! (Record intake)
- Click for package photo
- Food added by you
- Verified by our Amino Acid Analysis program
- Recorded based on the simplified diet
Tracking & Reporting Features
How many people can I track?
Where do I enter my blood test results?
Can I export my tracking/reporting data?
What does 'protein equivalent' mean when I'm entering my goals on the diet tab?
How do I add my own foods to the database?
What if I want to change the values associated with a food in the database that I did not add?
I found a value online that is different than the one in the book. Why is this?
Where do the values in HowMuchPhe come from?
- USDA Standard Reference: This is the USDA's own database (not the Branded Food database with food label data submitted by manufacturers), which has multiple sources, detailed here.
- Unrounded protein obtained from manufacturers. Manufacturers use a range of methods (among them, amino acid analysis, nutritional database calculation programs, protein analysis) to derive these values. Phe values are then derived as described below.
- Our own Amino Acid Analysis Program, the details of which are here.
In all these cases, our staff dietitan reviews the data and make sure it correlates with what we know of the phe/protein ratio of each of the food's ingredients, and derives an estimate of phe content. No values are accepted wholesale from any source; all are independently reviewed and verified based on the method developed by Virginia Schuett for the Low Protein Food List for PKU, using the nutritional and dietary standards for PKU management in North America.