Testing Matrix for HRT Monitoring – Updated
by Mark Newman, MS
I have personally spent almost 10 years putting together the information on our Testing Matrix, and we have had lots of good feedback on its…
How does DUTCH compare to other “spot” urine tests?
by Mark Newman, MS
Since we created and launched our Dried Urine Test for Comprehensive Hormones (DUTCH) 4 years ago, we’ve heard from so many of you, “DUTCH makes…
Adrenal Fatigue is all in your head (sort of)
by Mark Newman, MS
This is an important topic as our collective understanding continues to evolve. Since the term “Adrenal Fatigue” was coined in the late 1990s it has…
Study supporting DUTCH testing – Cortisol
by Mark Newman, MS
At the bottom of this email you can listen to a new webcast with Dr. Kara Fitzgerald talking all about hormone testing. Take a listen…
Why does DUTCH include cortisone and not just cortisol?
by Mark Newman, MS
DUTCH testing includes free cortisol throughout the day (just like saliva testing). This is a unique feature of our DUTCH testing model. Unlike saliva testing,…
Estriol Supplementation and Metabolites – A Caveat
by Mark Newman, MS
I want to discuss a complicated scenario with you. If you give estriol, please pay attention. If you don’t use estriol in your practice, feel…
Study supporting DUTCH testing – Improved Serum Correlation
by Mark Newman, MS
I’ve been anxiously waiting for all our data to roll in from an exciting study, and we’re now ready to share it. What we did…
Should You Test A Woman On The Birth Control Pill?
by Mark Newman, MS
To the point: Women on birth control pills have suppressed estrogen and progesterone. If you wonder why their progesterone and estrogen levels are low –…
Limitation and Caveats on Saliva Testing
by Mark Newman, MS
Our last educational email was about the limitations and caveats of our dutch testing (as well as urine testing in general). In this post, we…
Limitations of Lab Testing
by Mark Newman, MS
I have three important educational videos to share with you. You will definitely learn some things you didn’t know about each of these tests if…
Saliva Case Study
by Mark Newman, MS
The following is an interesting case study that highlights the challenge of using saliva testing when monitoring oral progesterone (it is also an interesting example…
Melatonin Testing Update
by Mark Newman, MS
Melatonin Testing Testing for melatonin is very important however this depends on whether or not your patient is sleeping and if they take melatonin to…
