Sunday, August 31, 2008

How to Calculate Phe/Protein

To derive phe from protein: multiply protein by about 30 (for fruit), 40 (for vegetables) or 50 (for grains like flour, etc.). The label gives only a rounded protein amount, so to be more safe in your estimates, you should add 0.5 to the value on the label. For example, if you have a food label from a baked product where the first ingredient is flour and the protein is 1 gm per serving, you would multiply 1.5 gm protein by 50 (=75 mg phe) to get the maximum amount of phe this product probably contains. If you have a food label from a fruit-based product that says 1 gm per serving, you would multiply 1.5 by 30 (=45 mg phe) to get maximum amount of phe. If you are using an exchange system, you would need to convert phe to exchanges.

This is a gross estimate of the phe content of a food. To be more accurate, you would need to have protein content of the item to one decimal place rather than the rounded figure.

(this came from the Listserv - from Virginia Schuett - thought it was a good thing to have on file)

7 comments:

DBL-LV said...

heidi- how is your son doing? Ryan is doing great. He is hyperphe his levels are between 2 and 4. although ihave more leniency with what to feed him i still would love ideas. what do you feed your son? do you order from the food companies?

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