What is Nitric Oxide (NO)

Nitric Oxide (NO) is a naturally produced molecule that plays a vital role in the circulation that supports almost every biological system. However, your body’s ability to produce NO declines rapidly as you age.

Supplementing your diet with a consistent, quality source of dietary nitrates is an easy and effective way to boost Nitric Oxide levels and support overall health. Berkeley Life’s proprietary dietary nitrate blend provides the plant-based bioequivalents of 5oz of spinach and 7oz of beets in each two-capsule dose, helping you maintain healthy Nitric Oxide levels as you age.

The Role of Nitric Oxide in Circulation,
Micro Circulation and Peripheral Neuropathy

The Executive Director of the Berkeley Life Scientific Advisory Board Beth Shirley RPh CCN presents on the role nitric oxide plays in addressing neuropathy.

How to use test strips to test your
Nitric Oxide level

In this short video you will see how to use the patented Berkeley Life Nitric Oxide Test Strips.

We Love Our Clients!

Thank you for taking the time to read these reviews.

My neck is feeling so much better

"I had neck pain that I had suffered from since a car accident in June of 2005.  I suffered with this pain everyday - sometimes mildly and sometimes more severely.  Also, my adrenal glands were shot and I was feeling a lot of stress.  I had been seeing another chiropractor for about a year with little results.  My pain never really went away despite facet blocks, trigger point injections and physical therapy.  My mother told me about Dr. Rosenfeld and I made an appointment.  My neck is feeling so much better.  My flare-ups are few and when they do occur Dr. Rosenfeld resolves them quickly.  The DSF supplement has helped me tremendously.  I no longer feel frazzled or out of sorts.  Thank you!!!"

- JH

I have experienced relief, blessed relief!

"I have neck pain.  I recall various incidents that triggered it… reaching into a desk drawer, sleeping on a new pillow, etc.  I have seen other chiropractors and some helped and others didn't.  My mom introduced me to Dr. Rosenfeld and I have experienced relief, blessed relief!"

- IP

Dr. Rosenfeld is a great teaching Doctor.

"I was in a car accident and had a back and neck injury.  In addition, I had pain in my hip and tingling in my cheeks.  A long time ago (before my accident) I had visited a physical therapist that hooked me up to electrical stimulation and put heat on me for weeks.  Over time I got better.  I found Dr. Rosenfeld through my PPO Blue Cross list of providers.  The first couple of weeks were learning new habits and each time and each visit I have learned more of what I can do to maintain the relief that Dr. Rosenfeld has brought me.  I am able to work without pain for days at a time and I know I can return to Dr. Rosenfeld's office and get support for continuing recovery.  I am still working on permanent neck pain relief but my lower back, hip and cheek tingling are gone!  Wonderful.  Dr. Rosenfeld helps me and motivates me to keep coming in! Her office staff is completely supportive and knowledgeable too.  Dr. Rosenfeld is a great teaching Doctor."

- DP

I no longer feel frazzled or out of sorts.

"I had neck pain that I had suffered from since a car accident in June of 2005.  I suffered with this pain everyday - sometimes mildly and sometimes more severely.  Also, my adrenal glands were shot and I was feeling a lot of stress.  I had been seeing another chiropractor for about a year with little results.  My pain never really went away despite facet blocks, trigger point injections and physical therapy.  My mother told me about Dr. Rosenfeld and I made an appointment.  My neck is feeling so much better.  My flare-ups are few and when they do occur Dr. Rosenfeld resolves them quickly.  The DSF supplement has helped me tremendously.  I no longer feel frazzled or out of sorts.  Thank you!!!"

- JH

Dr. Iris is a wonderful and caring doctor.

"Dr. Iris is a wonderful and caring doctor. I have been fortunate enough to be her patient since 2012, when my large toddler was causing havoc on my back. She was easily able to get me out of pain and back to functioning order and has been doing so ever since.

She has an amazing intuition when it comes to the body. She is able to find the little spots that are out of alignment, even if I'm not able to locate them myself, and put them back where they belong.

She is completely committed to her patient's well being and will do everything in her power to make you well, body and mind!"

-M.J.

I chose Dr. Rosenfeld to help me continue on the road to good health.

"I had just moved to this area.  I had been seeing another chiropractor on a regular basis to help with knee problems and other aches and pains that cropped up.  After I moved I chose Dr. Rosenfeld to help me continue on the road to good health.  I had also received physical therapy for my knee.  Physical therapy worked well but only focused on my knee.  Chiropractic treats my whole body.  Other areas of my body need adjusting to help keep my knee functioning well.  I found Dr. Rosenfeld through the yellow pages.  I am now in my 5th year of chiropractic care and I wonder how I got along without it in the past.  My knee is doing well and I am continuing to run."

- KB

Her patients come first there is no question about that.

"I have known Dr. Iris for over 15 years & in all that time she has never wavered from being not only a professional in her field, but treating you like a friend. She has always taken good care of me & made time to see me when I've needed her care. She is always on a quest to learn more & educate her patients so they can lead  healthy lives. Her patients come first there is no question about that."


With Dr. Rosenfeld I felt comfortable that she would take care of me.

"I had a neck injury seven years ago and have continued to have periods of bad times.  I recently had a knee replacement which threw my back and neck out to the point I could not walk.  I lost my job, can't work and can't work out.  I just felt down.  I had a bad experience with a chiropractor a long time ago.  With Dr. Rosenfeld I felt comfortable that she would take care of me.  Within a couple of visits I could walk and the pain was not so terrible and now we are working on the neck to try and relax it.  I also use the natural products as well as the exercises given to me by Dr. Rosenfeld to try to get the best results.  When I feel better life is better and everyone and everything is better.  I tell people to try chiropractor care because if they try it they will be surprised."

- KM

I was really impressed with the advanced equipment and techniques

"In April of 2008 I was struck by another car while driving and felt my neck snap and muscles in my upper body pull and tear. When I woke up the next day I had a migraine and was so stiff I could not walk. Dr. Iris saw me immediately and began working on me. I was really impressed with the advanced equipment and techniques she uses on accident victims. She eliminated my headache in the first visit and got me walking without pain quickly. I would never see or recommend another chiropractor as long as Dr. Iris is still practicing. She is such a wonderful person and talented professional."

- B. Davis

I have my life back!

"I have suffered with sciatica issues my entire life and worsened when I was pregnant.  The severity was intense.  I saw a general practitioner but had poor results.  I found Dr. Rosenfeld through my insurance company and looked her up on the internet.  I have had excellent results… I have my life back!  Thank you from the bottom of my heart and back!"

- DH
Dr. Iris Published Works
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