Hi Kim,

Metabolic disorders are real, the problem is... you can't always fix them.  I think (and honestly, I'm not sure) that you can overcome a DAO deficiency with the low-histamine diet.  Two questions you want to ask yourself before testing...

1. Will this tell us something we don't already know?  (Do we need this piece of information?)

2. How would the result affect her treatment plan?

These are good questions for any kind of testing, keeping in mind that people have different levels of curiosity, desperation, etc...  A few of my tests have been just for peace of mind.  That's OK too as long as you can afford it.

Heather