Have you thought lately, I’ve had it with being sick?

Are you tired of thinking about chronic illness?

Do you want more pleasant things to do with your time?

Some people call Dr. Nancy Mullan the MTHFR genetic medicine expert.

Dr. Mullan works with people who are struggling with chronic disease or other significant illness, who are willing to use diet and genetics based nutritional supplementation, and who want to increase well-being and energy, enhance immunity, lift mood, fine tune genetic function, and get their lives back.

Induce your body to function again.

  • Feel strong and vital
  • Think clearly and creatively
  • Get reconnected to joy
  • Think of your future with pleasure

Dr. Mullan works to enhance methylation, a pivotal process.

Methylation takes its place in your body among processes like cellular respiration and energy production. You must have methylation working well to be healthy.


Methylation is the attachment of a methyl group to a second molecule. This can totally change the character and action of the second molecule.

With very good reason, the hottest topic in genetics based nutritional therapy is the MTHFR enzyme. Its activity is an absolute necessity for methyl group production, and hence attachment.

Most clinicians test only the MTHFR gene for methyl group production. Dr Mullan, following Dr Amy Yasko, checks 30 genes, including MTHFR.

MTHFR function and methyl group formation is your pivot between sickness and health.

The Methyl Group: What It Can Do for You

Learn more about what methyl groups and methylation are, and why they are so central to your health.

Understand why testing only the MTHFR gene is totally insufficient to optimizing methyl group production in your body.

Learn why overloading your body with any methyl group donor can actually make you sick.

My new e book addresses these and other questions about this ground breaking, critical new area in therapeutics…

​What you said about this e book:

​OMG – I just read the entire thing in one sitting and it was SO IMPRESSIVE! Of course, you have a gift with the written word so it was so, so eloquent, but it was also interesting, informative and compelling!!!

AMAZING work. You really shine in this book, Nancy Mullan!!!

Dawn Tasher

Thank you for sharing The Methyl Group: What It Can Do for You. It was great. I think a lot of professionals will gravitate to it and finally become educated about methylation. Bravo.

Leo Cashman, Director
DAMS, Dental Amalgam Mercury Solutions

Optimize your genetic function to advance your recovery from chronic disease, MTHFR+, Lyme Disease, Chronic Fatigue Syndrome, Fibromyalgia, Autism Spectrum Disorders and Psychiatric Syndromes with this information.

​What you said about optimizing methylation:

You have opened my eyes to the absolute need to keep methylation central–a message I have never heard in the 10+ years my daughter has been sick. Personally consulting with you about her genetics and health and then following your prescribed protocol for her for these past few months have yielded results beyond any that we have experienced before. I would like to thank you for how vital a role you have played in all this and will continue to play as my daughter recovers her health. It has taken me many months of hearing you say again and again “methylation first” and many months of hearing you say again and again “start slowly with what fits on the prong of a fork” to finally realize that slow and steady does indeed win the race. So please keep up your message, because you and Dr. Amy are some of the only voices out there saying these things.

Leslie Tsai, California

​Optimizing methylation saved my life!

Diana Galloway, RNBS

​Esa sensación de esperanzas que siempre nos transmite la Dra Nancy, quien es nuestro norte a quien queremos y creemos.

Javier and Nora Cutrona