NUTRITIONAL SUPPLEMENTS (optimization consult) 

to maximize the benefits from the supplements you're taking.


With thousands of nutritional supplements on the market, it's often difficult to know which one to choose.  You need magnesium, but don't know whether to get the oxide, aspartate, citrate, malate, gluconate, or glycinate form of the supplement.  Which one is best?  And, what's the difference between the different forms?  

I'll explain the differences, and select the form best suited to your needs.


And say, you're looking for a high quality protein supplement, but are unsure what form of whey is 

best?  Isolate or concentrate, and what's the difference?


Or you're looking for a well-absorbed form of iron, and your doctor prescribes iron sulfate, but it's

upsetting your stomach -- and you need to take an iron supplement, but want something that doesn't

produce unwelcome side-effects.


This is an area I've taught, written extensively on, and have studied in depth for over 25 years.  Let me put my expertise to work for you in selecting the most effective, and highest quality nutritional supplements for your unique health needs.  Fee: $225

Copyright © 2020 Timothy M. Marshall Ph.D. • 7596 N La Cholla Blvd • Tucson, AZ 85741 • 520-370-6044 •



The statements made on this website have not been evaluated by the Food and Drug Administration. The information published on this site is not intended to diagnose, treat, cure, or prevent any disease. 


The entire contents of this website are based upon the opinions of Dr. Marshall, unless otherwise noted. Individual articles are based upon the opinions of the respective author, who retains copyright as marked. The information on this website is not intended to replace a one-on-one relationship with a qualified health care professional and is not intended as medical advice. It is intended as a sharing of knowledge and information from the research and experience of Dr. Marshall and his community. Dr. Marshall encourages you to make your own health care decisions based upon your research and in partnership with a qualified health care professional.