Jillian Greaves Functional Nutrition & Wellness in Boston

I had an amazing experience with Courtney as my lead dietician and client at Jillian Greaves Functional Nutrition & Wellness! I started this process overwhelmed and frustrated. I work in healthcare and had been to numerous conventional medical and functional practitioners and no one could give me answers for my painful cystic acne, head hair loss, and extreme anxiety. I had tried numerous medications and supplements with no change and felt like I was just "unlucky" with no explanation for my symtpoms. Right off the bat during my consult with Jillian I felt very validated. This validation continued as we did lab testing that revealed gut and hormonal imbalances. It was fascinating to see that the hormonal imbalances that other functional providers had "guessed" were at play were not at true, they were the opposite! In addition to gathering important data with testing, I have learned so much about how to nourish myself. I always considered myself a healthy eater consuming primarily whole foods. My work with Courtney taught me about optimizing (protein/micronutrients) and meal timing . I appreciated the "food first" approach to health with supplements added only to further support my body. I have had incredible results in my symtpom profile and also my follow-up lab results. Finally, I am grateful for how accomodating Courtney was with my nutritional challenges given my current TMJ dysfunction. She was able to cater nutritional guides to my challenges with chewing. This has been such an eye-opening experience and I feel very educated to continue caring for my body in the years ahead. Do not wait to make this investment in your health with 1:1 coaching!

Jillian’s PCOS program is by far the best investment I’ve made and I feel so lucky to have finally been able to work with her. I can only imagine how amazing she is to work with one on one and I’m already saving to make that a possibility for myself in the future. I’m 35 and I’ve been managing PCOS, hirsutism, cystic acne, PMDD, and being neurodivergent as far back as I can remember. I’ve worked with naturopaths, regular doctors, dermatologists, gynecologists, acupuncturists, chiropractors, and the whole lot - I was on antibiotics for acne for 10 years, spironolactone for acne for 5 years, took Accutane TWICE for my acne, and was on YAZ birth control for 8 years for acne … and my acne ALWAYS came back with a vengeance and was extremely excruciating and debilitating. Needless to say, my body (and my liver) have been through a lot pharmaceutically speaking only and I’m not even mentioning the mental health/hormonal impacts I endured and survived. Jillian is the most intelligent, most cutting-edge, most empathic, most caring provider that truly created a tailored health plan for me based on my DUTCH testing and other data of mine. After 6 months of her support and tailored lifestyle and supplement recommendations I have been able to work with my doctors to come completely off of my spironolactone and all acne-related products because my skin is completely CLEAR now using the supplements and lifestyle adjustments Jillian created for me. My sensory overload and overstimulation issues and severe mood swings related to PMDD and ADHD/Autism have leveled out in such a way that is sustainable, manageable, and much shorter/reduced in severity each month just before my menstruation begins that I’ve been able to return to work in person full time for the first time in 5 years (with adjustments for neurodivergence of course - but still - this is a HUGE change for me and my functionality as a human being.) To say I’m grateful for Jillian and the opportunity to work with her is a MASSIVE understatement. She is worth every single cent and then some. I really thought I knew everything to do with PCOS and the like but Jillian’s bespoke health plan for me through the PCOS program changed my life so dramatically for the better that I wish I could have her on my payroll for my entire life. She is just that good and that knowledgeable and that professional. I can’t sing her praises enough - or the praises of her colleagues enough - they are all truly amazing at what they do, they are so genuine and care so much and constantly surprise and delight me with how honest, helpful, and supportive they are. Really - I cannot recommend someone or a small business more highly - I’ve never experienced life and my health like this as an adult woman, and I genuinely want other women to benefit from Jillian and her team’s unique expertise, passion, and professionalism. Thank you all with all my heart.

Working with Isabel Fay at Jillian Greaves' office has been nothing short of life-changing. Isabel is incredibly patient, kind, and compassionate, and her expertise and knowledge are unparalleled. She has helped me understand and heal my body in ways no one else ever has. Thanks to Isabel, I’ve experienced a significant reduction in symptoms and, for the first time, avoided hospitalization due to ovarian cysts. Her guidance and support allowed me to safely come off birth control, something I never thought possible based on advice from other practitioners. She taught me how to truly listen to my body and take control of my health. The type of care and education Isabel provides should honestly be mandatory for everyone. It’s heartbreaking how little we’re taught about our own bodies, and Isabel has filled those gaps with kindness and clarity. Though the services are an investment, it’s the best money I’ve ever spent. I only wish I could continue working with her forever! I’ve already referred Isabel (and the Jillian Greaves team) to everyone I know because I want others to experience this level of transformation and care. She is an absolute gem, and I can’t recommend her or any of these women highly enough! If you're looking for a sign.. this is it.

I can't express how grateful I am for my time spent working with Courtney, and Jillian's practice! I started working with Court back in June of 2023 after working with a different functional medicine provider in the Fall of 2022. The previous provider didn't address the root cause of my issues and felt more like a one size fits all solution, so I came to Court desperate for answers. I had the worst acne I've had in my life, fatigue to the point of needing a nap in the middle of my workday, nonstop anxiety, constant stomach aches and irregular bowel movements, and digestive problems and bloating. From the very beginning Court was thoughtful, friendly, and compassionate. I felt so comfortable expressing all of my symptoms, concerns, and insecurities. Throughout our time together I learned so much, from the basic building blocks of a healthy daily routine, how our mind and body are connected, all of the different factors that play a role in health, a deep dive into functional lab test results, and so much more. Not only could I see the progress on the lab tests but I could also feel it in my body. My skin is the clearest it's been in years, I have energy all throughout the day, my anxiety has improved so much and I now have coping skills to continue using, I have regular bowel movements, and my body is less sensitive to travel or a change in routine, just to name a few! I didn't think it was possible to get here, but here I am! I'm truly so grateful for Court and was so sad to have our last session as she is a ray of light and provided so much support during this process, but I feel so confident in my future knowing I have the tools and knowledge to last me a lifetime. If you're feeling stuck I highly recommend working with Jillian's practice, it's the best investment I've ever made and you will gain knowledge and tools to live your best/healthiest life! Healing is possible!

I genuinely don't even know where to start. I joined this program back in January 2024 because I'd spent the vast majority of my 20's dealing with extreme digestive discomfort following years of chronic stress, poor dieting habits, and gut-destroying medications. Courtney was my lead dietitian during this process and I truly can't say enough about her. She is so kind and compassionate, intelligent and non-judgmental. She really listens and, my personal favorite thing about her, is that she never makes you feel rushed. No topic is off-limits. You can sob out of frustration and helplessness (literally), and she somehow always manages to remind you that you have more power than you think. Courtney and I worked together to heal my nervous system, which is foundational for healing. We met about twice per month and messaged in between. She was always prompt to reply and very thorough with her messaging responses. It took a few months to start seeing results, but reflecting on where I was to where I am now, I am blown away. My quality of life has drastically improved. I'm able to go on vacations without worrying about whether or not my digestion will cooperate. I have so much more time back in my days now. I'm no longer terrified of eating, wondering when the next digestive flare will occur. My period is manageable and I no longer lose days of my life every month. I understand now that symptoms are just messages from the body, rather than punishments. I'm emotional as I write this post because it is, in fact, possible to get your life back. Don't give up, trust your body. 10/10 would recommend this program to any woman looking to heal.

About four years ago, about when Covid began, there was a subtle shift in my health that at first felt like just a phase. As time progressed and life stressors happened, my health started on a dramatic decline. I woke up shaking with anxiety every morning, I couldn’t sleep through the night, my face was covered in cystic acne and I was so tired that I often required two naps to make it through the day. I specifically recall an outing with my then 6 year old daughter that was a special girls day, and while sitting in a restaurant, just the two of us, I struggled to stay awake, I was literally falling asleep at the table. I cried every day and tried everything I could find to feel better, with absolutely zero help from my primary care, everything “looked good” on my lab tests. It wasn’t until one fateful day when a new aesthetician that I was trying for my acne problems recommended Jillian. I was intrigued, but didn’t know what to expect. After an introductory call I was overwhelmed and felt that I wouldn’t be able to make the financial investment, but after a few days of thought I decided that nothing was more important than investing in my health and getting out of the hell that I was in. I started working with Jillian a month later and immediately I could feel that this was different than anything I had ever tried before. Someone who seemingly had all the answers was so invested in me and truly cared about my well being. Jillian warned me that healing takes time and I decided to trust the process - you have to trust the process or it will never work. She helped me learn how to care for myself through nourishment, stress management and targeted many issues I was having utilizing data collected from specialized tests for the gut, hormones, & micronutrients that are for more in depth than anything you can get from a normal doctors office. She was able to get me some pretty immediate relief and progress, but as we dug deeper we uncovered a mold issue in my house that was a major contributor to making me sick. It was very emotional and it was not easy, but Jillian guided me through this overwhelming stage of my life with this mold problem. Now one thing I can say, is that mold recovery is slow so I have worked on and off with Jillian for a few years now and she has just been so amazing. She has gone above and beyond anything I ever could have expected and is so full of compassion. Working with Jillian was absolutely one of the best decisions I have ever made. I always joke with my friends that if I were broke I would go into debt to do it all over again. She changed my life in such a profound way and I am able to walk away with a robust knowledge of how my body works and what I need to support it to feel my best. During our last session together I couldn’t help but cry as I was just so overwhelmed with gratitude for her. I don’t know where I would be today without this experience I am just so profoundly grateful. I am now able to say that I am acne and anxiety free, full of energy and just feeling like the person I was meant to be.

Cant recommend jillian enough such a great investment in yourself. After experiencing extreme fatigue, painful acne, bloating, hair loss, and so much more i was able to work with jillian and get my life back! I cant express the changes i have seen when starting with jillian my cortisol levels were over 400 after 6 months and 1 on 1 treatment plans It is now below 20. Healed acne with no acutane, and have zero bloating now. She really digs deep into your concerns and goes above and beyond to help for your future. Great recipes, testing, supplements, worth every penny! Still cant even belive my own before and after transformation!

There are not enough words to thank Jillian for all of the 1:1 support she has provided. Prior to working with Jillian I had suffered from years of migraines, low energy, anxiety, hives, horrible period related symptoms, and constant bloating and stomach pains. I had been to several doctors that put me on elimination diets or other protocols, but none of it helped get to the root of my problems. Jillian truly changed my life for the best! I finally felt heard and that I was getting answers. Jillian always took the time to ask thoughtful questions and explain test results in detail. I also appreciate the fact that she focused on simple changes, and progress instead of perfection, so that I could create sustainable habits. I am now able to live without all of the symptoms I had previously suffered from and am not fearful of certain types of food. Thank you x10000 Jillian!!