Customers frequently praise the clinic's staff for their attentive communication and holistic approach to treating digestive issues, fatigue, and sleep disorders using organic supplements. Many report significant health improvements and reduced reliance on prescription medications after several months of care. However, low-star reviews highlight concerns regarding the financial cost and lack of guaranteed results, with one customer citing a liability waiver that limits reimbursement if treatments do not succeed.
Data from Google, last updated October 26, 2026.
Reviews from Google, shown as published (original wording, unedited).
Zoe is great! She has helped me so much with my health issues.
Thank you Brian! We are so glad Zoe has been able to help you with your health issues and appreciate you taking the time to share this. We look forward to continuing to support you.
Love the doctors, especially love working with zoe , she’s patient, understanding, no judgment and kind.
Thank you, Diane, for the wonderful 5 star review. We are so glad you love the practitioners and Zoe appreciates working together with you to improve your health naturally. Your feedback means a lot to us.
Zoe Woltjer is the answer to our health issues. Zoe came highly recommended from a friend and we have not been disappointed after 6 months both my wife and I are feeling much better in every way. I would have never believed that natural supplements would have solved my health issues but they did. Everything is better and I mean everything. Digestion, sleep, energy etc etc etc.. I cannot say enough about Zoe Woltjer. We have seen many other practitioners over the last 6 years after exposure to toxic mold. Prescriptions and expensive therapies, we tried everything they told us to do with little or no change. Tens of thousands of dollars in IV therapy, hundreds of thousands in other therapies and still we had all the same issues. We could tell the difference after 2 weeks with Zoe Woltjer. Finally something that is working and we are so grateful. Zoe was concerned with proper dosage and we kept feeling better and better. This will be a journey for us as the mold toxins take time to get out of the body but we are feeling better and better. Zoe listens and cares about how her patients are doing. We will work with her for the next few years to improve our health and continually feel better and better. We have referred others and they are all doing incredibly well and also very grateful for Zoe. If you are wondering if this will help with whatever you are dealing with I can tell you it almost certainly will and it is worth far more than the fee compared to dozens of other therapies we tried.
Thank you, David, for sharing your experience and for trusting Zoe with your care. We are so glad to hear that you and your wife have seen meaningful improvements in digestion, sleep, and energy, and that Zoe’s careful dosing and attentive approach made a difference. We appreciate your referrals and are honored to support you both as you continue this recovery journey from mold exposure. Your kind words mean a lot to our whole team.
definitely recommend if you care about you health. Zoe has been very helpful for our family health. lots of improvements
Thank you so much, Liana, for the kind recommendation. We are thrilled Zoe has been so helpful and that your family has seen many improvements. Your trust means a lot to our team. We look forward to continuing to support your family's health.
We have had such a wonderful experience! I have taken 2 of my kids here, and their symptoms have improved/ completely gone away. I am currently finishing treatment, and so happy I have come here for the health needs. Most of my complaints have gone away/improved. My energy is back and it feels so good to feel normal again. Can’t remember Dr. Zoe enough!!!
Anna, Thank you so much! We are thrilled to hear about the improvements for you and your children. We are so glad your energy is back and you feel normal again. The human body has such amazing potential to heal once we figure out the root causes and confirm the foods and herbs the body needs to be fed. We appreciate your trust in Zoe and are honored to be a part of your family's health journey.
I have been seeing Zoe for just over 6 months now and have seen so much improvement in various issues I was having. I'm working to come off of prescription medication and am seeing improvement in joint pain. Such a wonderful experience!
Thank you, Amber — we are so grateful for your kind words. We are thrilled Zoe has helped you see improvement with joint pain and as you work toward coming off prescription medication. We appreciate your trust and look forward to continuing to support your progress.
Gerald at Natural Health Improvement Center has made a big impact on my health and wellbeing. He seems to have a solution to support any ailment and is very skilled at muscle testing to see just what your body needs nutritionally. I highly recommend.
Thank you so much for your kind words, Hannah. We're elated Gerald has made such a positive impact on your health and wellbeing and appreciate you recognizing the precision and skills our clinicians have trained extensively to ensure we can naturally support your body to heal. We're honored to support your health and look forward to continuing to help you when needed.
Zoe has been amazing! She really cares about her patients and listens, we've had good results seeing her!
Yes Linda! We agree that Zoe is amazing =) She strives to do everything within her abilities to guide each patient and family member on their journey to health. We are so happy that you and your family have had good results and we continue to look forward to seeing you and the kids in the clinic again soon.
I’ve struggled with chronic fatigue and brain fog for almost 30 years. The nutritional support and healing I’ve gained from working with Gerald at NHIC for the past two years has allowed me to reach a much higher level of health and functioning, especially with the intensity and stress of my life post-divorce where I found myself having to work multiple jobs. After starting this program, I could feel how my body had been starving for the kind of directed nutritional support that I have been receiving here. All my life I had been playing a guessing game with all kinds of supplements I had researched which was hit or miss at best. I thought I was on a “normal” downward spiral of aging, especially with chronic bladder and kidney issues. The bladder infections I’ve had for years are gone. I don’t wake up to use the bathroom all night long. Fears of pee accidents are just a memory. I am stronger overall and staying that way. I was also hit by a car as a pedestrian and the support I received here was a valuable part of my healing process. Another important benefit for me is being able to treat my thyroid issues with natural supplements. My thyroid has been healing rather than dying. I’m in my 60’s and I don’t need any medications other than nutritional supplements. Since I’ve been on my natural health improvement program, I’ve been clearing the massive parasite infestation I didn’t realize that I’ve had, probably since my childhood living in SE Asia. From that I’m experiencing improved digestion, another lifelong issue. The Natural Health Improvement Center has been a lifesaving resource for me. I recommend it 100 percent.
Thank you so much for this wonderful review and for trusting Gerald and our team with your care. We are overjoyed to hear the nutritional support has helped your energy, brain fog, bladder and thyroid issues, digestion, and recovery after the accident. It means a great deal to know the program has been life changing during such a challenging time. We appreciate your recommendation and look forward to continuing to support your health and wellbeing.
I’ve been going to NHIC and seeing Shelby for about 3 months. I was ready to dig deep into healing my gut from IBS. The supplements are not only healing my gut but my other organs I didn’t know needed healing. I love that they treat the root cause and not put a bandaid on it with pharmaceuticals.
Thank you so much for sharing your experience, Nancy — we’re thrilled to hear the NHIC team has helped you find root‑cause healing for your IBS and other issues. It means a lot that our approach and supplements are making a real difference in your health. We appreciate your trust and look forward to supporting your continued healing journey.