Quote:
Originally Posted by whoMe 
What's the difference between the $90 stool test and the $325 one? Is it mostly culturing vs dna?
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There's actually 4 stool tests (I can get 20% off any of these prices), these are the listed directlab costs:
1) $325 CSA (Doctors Data) - culturing stool test, does gut flora, and also things like pH, SCFA, other digestion markers, etc
2) $113 - just the gut flora part of the CSA above (with my 20% discount)
3) $425 GI Stool (Metametrix) - DNA stool test, gives mostly the same data as the CSA, but different methodology
4) $259 - just the gut flora part of the GI stool test
We did #2, I'm thinking about doing #4 as the repeat test, but it's still a lot more money. The full tests have some interesting info, but phew - expensive!!
ETA: My homemade magnesium & pH test this morning. pH of our water before adding anything, 6.2. pH after adding 1 capsule mag, 8.0+ (top of my test kit's range). pH after adding 1/4tsp ascorbic acid to the water + mag mixture - 5.0 (bottom of my test kit's range). Kirkman Labs sells a "buffered" mag glycinate where they add ascorbic acid and citric acid to the mag (or you can just do mag citrate, which is more acidic - but glycinate works soooo well for DS). So, I'm just going to mix his mag with ascorbic acid from now on. I'll test his poop pH and see if it changes (currently at 8.0 on my test strips).
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