In their words
Testimonials
Founders, executives, athletes and physicians. Every quote below is theirs, published exactly as they gave it. The photos are from Andrés’s own scrapbook, captions included.
“It’s no exaggeration to say that Andres has changed my life for the better. He is more than a health coach; he’s a life coach.”
Jeffrey B. Kindler
“Andres was a valuable addition to my professional team during my 2023 season. His methodology is extremely thorough. He helped me achieve all of my fitness and health goals through expertly guided meal planning, health analytics, and glucose monitoring.”
Bianca Andreescu
“I went from 23% body fat and waking up groggy, reaching for caffeine and nicotine just to function, to actually feeling rested with sleep scores in the 90s. Now I’m sitting at 16% body fat and 170 pounds, and pull-ups feel easy. The data just doesn’t lie.”
Adam Wininger
“The tools Andres offered me to get in touch with my own physiology and intuition transformed a simple fitness journey into an opportunity to reinvent myself.”
Parker McCurley
“I have really enjoyed our conversations. There are few people like you, and the hours we spent together are like gold.”
Kevin Ryan
“Under his guidance, my sleep metrics went from good to absolutely elite. My average sleep percentage on Whoop climbed to near 100%, and I’ve maintained that level for six straight months now. A total game-changer for my recovery.”
Kyle Hulbert
“Andres remained committed, consistent, and adaptable. His approach was structured and realistic, always keeping in mind what was sustainable for our lifestyle. His data-informed mindset helped us stay motivated and focused.”
Joe Poulin
“We were able to take a deep dive that gave me everything I needed to level up my health and performance beyond what I imagined was possible. I’m humbled by our experience working together.”
Mickey Duek
“I had extreme food poisoning that affected me for over a year. With his help I restructured my gut biome... and gained muscle mass. I am now more competent, confident, and capable to handle health challenges myself.”
Andrew Grace
“In my journey, I’ve been fortunate to connect with Andres. He embodies wisdom and unwavering dedication, guiding me towards my health and fitness objectives. Here’s to further achievements on the path to a healthier and more enriching life! Gracias Andres!”
Israel Zighelboim
“In a five-month journey, Andres has helped me dive deeper into my health and performance, identify which metrics to prioritise and develop an actionable plan to optimise them. His wealth of knowledge and experience allowed us to apply the theory to my daily and monthly routine so that I could nurture the right habits quickly. Andres is genuinely tenacious about delivering personal satisfaction to his clients. His EQ makes the process feel natural, and the fact that he’s done most of what he vouches for motivates you to walk the walk as well”
Ziv Tubin
“Andres has done an amazing job for me over a long term programme to gradually transform my health and wellbeing. I was very busy and approaching 50 so I wanted a coach to systematically guide me through a realistic long term plan to improve my quality of life. We tackled many different dimensions: sleep, diet, hydration, fitness, strength, VO2 in a fascinating way where Andres gave me deep insight and learnings in each area before together we figured out what was best for me and also realistic bearing in mind my lifestyle. My energy levels have gone through the roof, I’ve gradually lost 10% of my bodyweight whilst keeping enough energy to increase muscle mass, fitness and strength.”
Simon Denyer
Independently reviewed
Rated on Trustpilot and Google.
Trustpilot
Complete Game Changer
“I have a degree in Kinesiology and almost 10 years of exercise experience, yet I still couldn't solve some of the issues Andrés helped me identify and fix. Working with him produced incredible results that I couldn't have achieved on my own. Can't recommend Andrés and his team highly enough. I feel better, look better, and, most importantly, I now have a deeper understanding of my health and physiology that I'll carry with me forward”
Google
“Andres is the real deal! I cannot recommend him enough. He has truly shaped the way I live on a day to day basis. I was always a health conscious individual, but never felt even close to 100% on a daily basis. However with his guidance I realized that I was just scratching the surface of how good I can feel and how productive I can be. The practices he implemented in my life are second to none. And the level of care and attention he has for my health is truly remarkable. If you want to reach your full potential, working with him is a non-negotiable.”
Trustpilot
BEST of the best
“Andres and his team over at Know Your Physio are not only an ELITE group of individuals but are even better people. If you want comprehensive and proven methods to improve your health and life overall. This is the place for you. From improved sleep/recovery to better overall VO2 max, my performance has been objectively heightened to a level I did not know was possible. I recommend Andres and Know Your Physio to anyone looking to better themselves. They are also stand up human beings and treat others as if they would their own family. It is not what you know, but how you care for others. This team checks all of the boxes and I am ecstatic working with them. 10/10”
Trustpilot
Strongly recommend Know Your Physio!
“As an avid health and wellness advocate, after researching many programs, Know Your Physio is top notch. The team is exceptional and the program yields amazing results. Cannot recommend Andres enough!”
Google
“I've known Andres and the KYP community for several months now and I can say this is a group of people who take achieving excellence more seriously than any group I've ever been a part of. I wish I would have found them sooner.”
Trustpilot
A Life Changing Program
“Between a busy career and trying to up my running game, I needed my body to keep up with my life. Inflammation had been a recurring issue and I felt like I was managing symptoms rather than addressing the underlying issue. A friend pointed me towards Know Your Physio and it turned out to be exactly what I was looking for. It shifted the way I think about my health entirely. The whole experience is personalized. The team has a way of making you feel supported without micromanaging you, which I really appreciated. My inflammation is down, my recovery time after workouts has improved noticeably, and I feel sharper overall. This program is the real deal.”
Trustpilot
Expensive, but definitely worth it
“I enrolled in Andres's 3-month coaching program and want to share my experience for anyone considering it. There were genuinely impressive elements. Andres and his team handled all the logistics seamlessly. They even sent a mobile phlebotomist to my home to draw blood! Kristal was excellent with handling all of my testing for me. The bloodwork and health data (including Oura integration) were reviewed in detail, and I had a highly productive conversation with a physician about the results. Those sessions gave me great insight into my health picture. Where the program shines is in its high-touch, concierge-style approach. I received personalized meal and training plans, responsive communication, and a team that clearly cares about your wellbeing. Andres is genuinely passionate about health and longevity and treated my relationship with care and respect. It is expensive with all of the bells and whistles (think testing, consultations, etc.), however, the results and level of care were well worth the price. I encourage anyone with the desire to be healthier and resources to choose Know Your Physio!”
Trustpilot
If you are on the fence, GET OFF IT
“I have been working with Andres for 2 years and it has dramatically changed my life. When I came to Andres, I was lethargic, overweight, and borderline alcoholic. Working with Andres, he was able to gently guide me towards becoming the highest version of myself. First, he got an understanding of my current lifestyle from a place of love and understanding, not judgement. We went through what my ideal physique and physiology could look like with small, compounding changes that actually last. I have tried so many health coaches, personal trainers, nutritionists, dieticians in the past but nobody was able to get me to the point of losing almost 70 lbs. He met me where I am and gave me the tools and tactics to manage my stressors, get my diet in check while still having flexibility to "have fun" and more importantly, he helped me re-wire what "fun" actually feels like. I am healthier, happier and more aligned after working with Andres and the KnowYour Physio team. My testosterone has gone up, I haven't drank alcohol in the last 7 months and I am feeling confident and amazing in my body. If you are on the fence of working with Andres, I would 100% give it a shot and see for yourself what this could do for your overall wellness and vitality. 10/10 would recomment”
Trustpilot
Andres is the person!
“I've known Andres for more than a decade. I first met him when he was a young teenager and I was one of his counselors. It's been incredible to watch his growth and see him become the professional, knowledgeable, and genuinely caring person he is today. A few months ago, I decided to work with him on my health and wellness goals, and the results have been outstanding. Through his guidance, personalized recommendations, bloodwork analysis, and comprehensive testing, we made highly targeted and specific changes that led to major improvements in just 2–3 months. My testosterone increased by 30%, my triglycerides dropped by 42%, and my cholesterol went from high to the normal range. What sets Andres apart is not only his technical expertise, but also his ability to connect with people. He is a genuine, charismatic leader who truly cares about helping his clients become the best version of themselves. His approach is practical, data-driven, and tailored to each individual. I would highly recommend Andres to anyone looking to improve their health, performance, and longevity, especially young professionals and business owners who want to optimize their energy, focus, and overall well-being. Working with him has been one of the best investments I've made in my health.”
Trustpilot
Writing this a month later: Andres and his team are excellent
“I'll be honest… I came into this pretty skeptical. I'm based in New York, working at a startup, and I was running on empty. Poor sleep, constant brain fog, and a lot of stress. When I started Know Your Physio, what won me over quickly was the team. Kacie was warm and responsive from the start, Dr. Joel Wussow is impressive and very approachable. The conversation I had with him about my health data was one of the more eye-opening medical discussions I've had and Andres really cares about building a relationship and holding me accountable. I also appreciated how the team used my Oura metrics to actually shape my plan, and the genetic testing ended up being one of the most valuable parts since I was able to understand what I'm personally predisposed to gave everything a much deeper level of context. Six months later, my sleep scores are consistently in the 90s, my HRV has improved, I've gained muscle, and the brain fog is (nearly) gone!”
Trustpilot
A Life Changing Investment
“This program has been a complete turning point in my life. I enrolled in the 6-month program with Know Your Physio, and as I approach the finish line, the transformation in both my mental and physical health is undeniable. The progress has been real, measurable, and powerful. I've been committed to health and fitness for years, but I hit a plateau that I couldn't break on my own. Working with Andres and the KYP team changed that almost immediately. The results spoke for themselves, and more importantly, the knowledge and principles I've gained will stay with me for life. They've not only elevated me, but they've impacted the people around me as well. This isn't just about tracking habits or optimizing routines - though they do that exceptionally well. It's about mastering the fundamentals, taking ownership of your standards, and building yourself into the strongest version of who you're capable of becoming. […]”
Trustpilot
18+ months of Coaching
“I've been working with Andres for over a year and a half. In that time, I've added 10lbs of lean muscle mass, lowered my body fat % substantially, and even lowerd my heart rate to be the low 50s and sometimes, high 40s, but most importantly, have noticed incredible changes in the quality of my mind. I feel awake and alive instead of sluggish and behind. I am able to make better decisions because I know what fuel + habits my brain needs. I have navigated high-levels of stress with grace because I know how to regulate my nervous system. Having someone in your corner to not only craft your workouts, but also one that has a thorough understanding of the brain + psychology means I can get the most out of my business. Not only am I healthier, but my business had its first $100k month recently. That cannot occur without me as a founder being my sharpest. Andres is more to me than just a health coach. He understands me, my goals, and my business. There are times where I seek his counsel beyond health which is the exact kind of coach I think many of us need”
Trustpilot
KYP Changed my Life
“I started working with Andres through Know Your Physio with one goal: take ownership of my health in a structured, intelligent way. Step one was sleep. We improved it systematically. and The results were both qualitatively felt and quantitatively tracked through biofeedback. That set the foundation. From there, we centralized everything: weight, bloodwork, biometrics — all monitored and organized through technology so nothing was fragmented or guesswork. We sequenced and analyzed my genetic data to understand what to watch for in blood tests and what to proactively optimize. One major breakthrough: discovering a Vitamin B deficiency linked to a methylation-related genetic mutation. Switching to methylated B vitamins was transformative. The change wasn't subtle — it was life-altering. […]”
Trustpilot
Game Changer
“I first met Andres at a health conference during his presentation. I was intrigued not only by his knowledge but also by his practical ways of approaching health optimization. After connecting with him and having a few conversations I decided to become his client which has been a game changer. Even though I have been a health enthusiast for many years, it was challenging to figure out what actually moves the needle and what is just the latest biohacking trend. With his coaching I was able to put on 20 lbs of muscle in under 6 months and become the strongest I have ever been. I even reached my goal of bench pressing 225 lb and doing muscle ups! But it wasn't just the physical aspect that improved, he was able to answer all of my questions and help me incorporate new routines and habits into into my daily schedule. I gained more energy, focus and confidence which benefited my professional, personal and family life. […]”
Trustpilot
A must for longevity
“Working with Know Your Physio and Andres Preschel has been truly life-changing for me and my family. I've been working with Andres for a few years now, and what stands out most is his focus on building sustainable, long-term habits rather than quick fixes. Slowly and consistently, he helped me implement health practices that became part of my lifestyle, improving my energy, focus, strength, and overall well-being. What makes his approach unique is the combination of science, accountability, and personalization. He doesn't just give you a plan, he teaches you how to understand your own physiology so you can make better decisions independently. He has also worked with my sons and has been instrumental in shaping their health habits at a young age. That, to me, is priceless. If you are looking for real, lasting change and not hype. I highly recommend Know Your Physio.”
Trustpilot
Lifetime healthy habits
“Andres helped me create healthy habits that have stayed with me long after our program concluded. We worked together for the 6 months prior to my wedding, hoping to lose 20 pounds and manage the wedding planning stress effectively. I lost the weight, yes it took until the week prior to the wedding, but learned so much about my body. Sticking to healthy sleeping patterns, the supplements Andres recommended, I've lost another 30 pounds in the 6 months after my wedding. I highly recommend Andres to anyone who is serious about living a healthier life”
Trustpilot
Writing this months later...
“I spend a lot of time in the studio and honestly my health was the last thing on my mind for a long time. I had tried a few different programs before but nothing ever really stuck or felt tailored to me specifically. Know Your Physio was a different experience. The genetic testing was the thing that really got me. Finding out what my body is actually wired for and building around that felt way more personal than anything I had done before. My WHOOP data gave me a live look at how I was responding week to week which kept me locked in. Kristel was great the whole way through, always on it and easy to reach. Andres genuinely cares about the people he works with and you can feel that. Sleep is better, energy is up, BMI is down. For anyone who has tried other programs and felt like they were just going through the motions, this one is worth your time.”
Trustpilot
Loved working with Andres
“Loved working with Andres. One of the best decisions I've made and investments I've made because the long term health benefits outweigh his cost 100 fold. Very worth it and changed my life.”