"I have found the programs to be an invaluable asset for my clients to reclaim their health and fix their metabolic health. The gradual introduction of new information and social support provided in the groups and online meetings are a wonderful addition that provided much needed support and make the health journey not a lonely one."

"Living with bipolar has meant my energy and motivation can change a lot, and trying to manage my kidney health on top of that felt way too overwhelming. But Erin truly understood. She met me where I was, never pushed too hard, and helped me build routines that flex with how I’m feeling. After three months, I’m already eating better, sleeping more consistently, I've got more energy, and for the first time in years, I feel like my brain isn't fighting me. I feel like I can finally make changes and make them stick."

"I’d spent years bouncing between diets, always second-guessing what was “healthy” for me, especially after I developed prediabetes and later early-stage kidney issues. What I found here was clarity. Yvonne helped me cut through the noise and focus on what truly supports my kidneys, blood sugar and insulin levels without making life harder. The changes felt surprisingly manageable, and the results followed: more energy, better labs, and less stress around food. It’s been a total shift in how I care for myself."

"I’ve struggled with my weight for most of my life, and with heart and kidney problems running in my family, I knew I had to take action - but the advice out there is all over the place. What stood out here was how tailored everything was. Orsolya didn’t throw a one-size-fits-all plan at me. Instead, we looked at my health history, how I eat, how I move, and how I feel. It wasn’t about being perfect. It was about building something that actually works for me. A few months in, my blood pressure is down and I’m still losing weight and feeling great."

"Working with Ueli was a game-changer. I’d been stuck in the same cycle for years, with kidney issues and too much weight. Ueli’s no-fuss, pragmatic approach helped me drop 20 kg without obsessing over food or dragging myself to the gym every day. He kept things simple, gave me tools that actually fit my life, and kept the momentum going with his energy and straight-up enthusiasm. It wasn’t just about hitting a goal. It was about changing how I live. I’m feeling stronger, lighter, and more in control than I have in a long time."

"I started working with Erin a while ago, was able to get off all my medications, and went into remission for both Bipolar I and PCOS (symptom-free for more than a couple years and counting). When she started with Mason & Lanz, things just got better. I got the benefit of a whole team of experts and access to all their educational materials. They helped guide me through my first pregnancy and now I check in with them for tips and troubleshooting as I'm nursing. Not only do I get help for myself, but for my husband, also. As our baby grows older, we'll keep coming to M&L for guidance on our nutrition and lifestyle. Like our family doctor, M&L is a valued part of our health care team.

“Working with Mason & Lanz is an outstanding choice. Their innovative approach combines cutting-edge research with personalized coaching to support me in managing my chronic conditions of  high cholesterol and high blood pressure. Their program not only helped me lose weight but also to improve overall metabolic health, mental clarity, and energy levels without feeling deprived."

"Having Erin stay with me for two weeks was one of the most impactful decisions I’ve ever made. It wasn’t just about food - though we definitely cleaned up my kitchen and simplified my eating. It was also about routines, sleep, emotional triggers, stress habits, and building a daily rhythm that works. Together, we created new patterns - from how I grocery shop to how I handle overwhelm. The best part is, the support didn’t end when she left. The follow-up video calls have helped me stay grounded and accountable, and I know I can reach out if I hit a rough patch."

"Joining this program has transformed my life. Since my early teens, I struggled with eczema and persistent acne that no treatment seemed to touch. After just a few months with Mason & Lanz, my skin has cleared up in ways I never thought possible. My eczema is gone and my acne is under control. I have a lot of dietary restrictions, so the individualized coaching made a huge difference for my overall success."

“I have recently had the privilege of working with Mason & Lanz and receiving wonderful results.  I have to be handheld with stuff like this, and their program is so well structured I am able to stay on track and also refer back anytime I want to refresh my memory. I am deeply grateful for the way they make me feel cared for and that I matter. I always feel they want me, personally, to be successful!"

I’m 56 and living with ADPKD. By early 2024, my eGFR had dropped to 21, and I was exhausted, pre-diabetic, and losing hope. Then I started working with Orsolya. She gave me a kidney-focused diet that fit my body - even with red meat. In a year, I lost 22 pounds, lowered my A1c, stabilized my blood pressure, and, most importantly, my eGFR stopped falling. I have energy again and no kidney pain. Mason & Lanz gave me tools and confidence when nothing else worked.

"Ketosis was intended to help with my polycystic kidney disease, but maintaining a constant state of ketosis was incredibly challenging. This is where the Kidney Health Program made all the difference. The systematic teaching, science-based approach, and the extensive support I received from Erin and team were invaluable. With their guidance, I was finally able to stay in ketosis consistently and noticed improvements in my health such as less tiredness and reduced leg cramps. I can't thank Mason & Lanz enough for making this possible!"

"Working with Ueli has been a completely different experience from anything I’ve tried before, and I’ve spent a lot of money over the years on various programs, specialists, and so-called experts. Most people I worked with in the past either gave me one-size-fits-all advice or didn’t fully understand the complexity of my condition. Ueli's deep and broad understanding of nutrition - not just for general health, but specifically for someone with a kidney disease - meant that every recommendation actually made sense for me. What really sets him apart, though, is how he taught me to understand my body and adjust things myself going forward."

“Already during the 15-minute initial consultation, I knew I was in exactly the right place with Yvonne from Mason & Lanz. I wanted individualized support, not a group program - and the main consultation far exceeded my expectations. I got clear, highly competent answers to my specific questions about how to apply a ketogenic diet and supplements in relation to my medical condition. No question was left unanswered, and I received everything I needed to confidently continue on my own. On top of that, I got personalized tips and strength exercises that perfectly round out my program. I feel completely supported and in good hands - it couldn’t be better! 5 stars!!!”

"I have ADPKD, am approaching eGFR 26 with an average eGFR decrease of 6-7 per year, and I've suffered with considerable complaints... Orsolya explained a lot to me, was very attentive, encouraging and also persistently supportive. My kidney function has now stabilized and even improved. My blood pressure is now normal, bloated belly disappeared, all the joint pain, chronic headaches and digestive issues have resolved, my inflammatory markers are now in the normal range."

"I am CKD stage 3B, following the Ketogenic Nutrition Program for Kidney Health. Since I've been working with Mason & Lanz, every lab test has shown an improvement over the one before. I’ve been able to stop some medications. The personalized coaching has been invaluable, giving me the guidance and accountability I needed to stick with it. The course has taught me so much about how specific foods and lifestyle changes impact my kidney function, and the group support keeps me motivated.  I’m truly grateful. I highly recommend Mason & Lanz."

"My daughter is 15 years old and on the autism spectrum. This makes it difficult for her to focus at school and study effectively. We worked together with Orsolya and my daughter followed a ketogenic diet program for mental health, and the positive change was remarkable. She was much more focused and learned at a higher speed and much more efficiently. She did well in school. It was very useful and nice to have a coach we could turn to with questions. The diet was not difficult to follow at all, but a supportive community has been important so that we do not feel isolated and alone. Mason & Lanz provides all the help and support we need."

"Living with severe mental illness felt like an endless cycle of ups and downs, even with medication and top medical care. I was unable to participate in regular life in a lot of ways and I struggled with anxiety as well as frequent low mental and physical energy. Within weeks of starting with Mason & Lanz, I felt better than I ever have. I was able to start weaning off of my medications, and now I'm completely medication free, as long as I stay on the diet. I have energy. I can finally DO things. I feel normal for the first time ever. Thanks to my coach, Erin, and thanks, Mason & Lanz. You changed my life."

"Starting this ketogenic nutrition program has been a game-changer for my mental health, especially my anxiety. I’ve dealt with overwhelming anxiety for years, but with the guidance and support from my coach, I've learned how to use nutrition to support my mental well-being. The four-month educational course was eye-opening, helping me understand the deep connection between what I eat and how I feel. Being part of a group sympathetic to my struggles keeps me going on tough days. I now feel calmer, more balanced, and capable of handling stress in ways I never could before. Anxiety down, life satisfaction up."