We have dealt with our own gut issues, and now we want to help guide you to experience relief.
Our clients regularly tell us that our guidance has changed their life (you can read our testimonials here). This is why we continue to do what we do.
We are a 100% functional / root cause / holistic nutrition specialty clinic, providing the best quality nutrition care to help you finally improve and eliminate those gut issues, so you can get feel better + get on with your life, with a peaceful gut!
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ASHLEY OSWALD, RDN, IFNCP, LD
Gut Health Dietitian Nutritionist
Founder + CEO
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Ashley Oswald trained at a Harvard teaching hospital, worked in ICUs across the country, is on teaching faculty at the Integrative and Functional Nutrition Academy, is the CEO at Oswald Digestive Clinic which she founded in 2016, and has worked in many other parts of the medical field (cancer institutes, vein feeding, mental health, MD-ran functional medicine clinics, and more).
In 2016, a personal change pushed her to move back to Minnesota, where she decided to start Oswald Digestive Clinic.
Her and her team at Oswald Digestive Clinic have on average 7 years of formal schooling in nutrition science each, and have helped thousands of client improve + eliminate bothersome gut issues, from simple problems, to medical mysteries that have stumped their doctors.
On average, doctors have 20 hours of schooling in nutrition science... which is why we are glad to partner with many doctors as a referral source, to save them time while improving their client outcomes.
Fast forward to today, and 70% of our clients get insurance coverage, while 30% see the value of cash pay.
We are so grateful for all of our clients who choose our clinic to work with, and all of you who refer to us.
Outside of the clinic, Ashley can often be found swimming, exploring, studying a variety of topics, and spending time with the people she meets along the way.
Ashley is not taking new clients at this time.
KATIE BAILEY, MS, RD, LD, FNC
Gut Health Dietitian Nutritionist
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Katie received her Master's Degree in Human Nutrition from Eastern Michigan University, her Undergraduate Degree in Food Science and Human Nutrition from the University of Maine, and completed her dietetic internship with 1,200 hours of supervised practice in Tennessee. Since then, she has gone on to complete a certification in Functional Nutrition from the Functional Nutrition Alliance, which included an in depth study of the digestive, immune, urinary, cardiovascular, endocrine, nervous, and reproductive systems, all through a functional and holistic medicine lens, with many hours of case study practice.
Katie has been a dietitian since 2013, and during much of this time, she worked as an inpatient hospital dietitian and manager, and outpatient clinic dietitian, helping a variety of clients to feel better and achieve their goals.
Through her own struggle with chronic fatigue, iron deficiency, mold toxicity, and recurrent mono - which conventional medicine did not have the tools to help her with - Katie came to realize that she wanted to work in a setting that allowed her more flexibility to help clients fully, in the ways she has seen to be effective: by using a holistic / functional / root-cause medical nutrition therapy approach.
So, she left the hospital setting to have her twin babies. During this time, she helped family and friends with their health, and ended up using her knowledge to help her own babies, too, after her infant son started to struggle with severe eczema, food allergies, poor gut health, and sleep disturbances.
Now that her babies are no longer infants, she is ready to start seeing clients again, and we are so thrilled to have her on board with our clinic. Katie is excited about empowering and supporting her clients to realize how powerful functional nutrition can be, to support their body's own innate ability to heal when given the right tools and support.
Outside of the clinic, Katie loves to cook and bake, to learn and discover new things, to travel and experience new places, and, especially now, loves to spend time at home with her husband and young twins.
RITA CAREY RUBIN, MS, RDN, CDCES
Registered Dietitian, Certified Health Coach, & Culinary Specialist
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Rita is a graduate of the State University of New York at Oneonta and Bastyr University in Seattle, with Bachelor’s degrees in Education and Dietetics and a Master’s degree in Nutrition.
Her love of great food and good nutrition has led her down a variety of paths. Rita operated a personal chef business in Seattle, Washington, and has worked for clinical and community nutrition programs in Arizona and New York.
For eight years, she shared her love of great food and good nutrition as the host of YRMC’s online cooking series, Your Healthy Kitchen, and on Facebook at YRMC’s Your Healthy Kitchen.
She is and has been a regular contributing author for Today's Dietitian Magazine, Diabetes Self-Management, and the Yavapai Regional Medical Center's Health Connect Blog.
Rita holds further certifications as a Health Coach through WellCoaches, an Eating Psychology Coach, a Diabetes Care and Education Specialist, and has been certified to train individuals in the use of Insulin Pump and Continuous Glucose Monitors, while also supporting them in data interpretation.
She has worked with a large variety of clients from different cultural, economic, and educational backgrounds, in both 1:1 and group settings. Group classes have included Living Well with Diabetes and Reversing Heart Disease.
Rita is passionate about using motivational interviewing skills, while taking a whole / real foods, mindful eating, and diet quality approach in supporting clients to achieve their optimal health.
Outside of work, Rita loves to cook at home, and spends as much time as she can in her garden or on the trails in New York’s beautiful Hudson River Valley.
MARCIE VASKE, MS, LN, CNS
Gut Health Licensed Nutritionist
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Marcie graduated with her Master's Degree in Human Nutrition, completed her undergraduate degree in community health and athletic training, and has been working in the Functional Medicine world since 2011. She is also the Vice-Chair of the Minnesota Board of Dietetics and Nutrition.
After a 10-year struggle with anorexia, lifelong chronic and complex digestive issues, infertility, and the birth of her twins, Marcie realized that throughout her experiences, nutrition was her saving grace, and she knew she needed to share what she whole-heartedly believed in to help change the lives of others.
Over the course of her career, Marcie has worked with a variety of clients, and her clinical experience spans a myriad of conditions and diseases. Her passion lies in gut health, disordered eating, thyroid health, and female hormones.
Marcie is a firm believer in educating her clients to make dietary changes that can help them lead the life they desire. She has learned through her own journey, that nutrition has the power to heal, and she uses her own experiences and deep understanding of nutrition to empower her clients to walk their own journey of making changes that are sustainable and maintainable.
Every step, big or small, makes a difference.
Outside of helping to guide her clients back to health, Marcie enjoys watching her twins compete in sports, being creative in the kitchen, and decorating her home. She also loves running, weightlifting, and spending days at the lake or winter evenings all snuggled in with her favorite people.
JAKE CHRISTENSEN RD
Gut Health Dietitian Nutritionist
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Jacob earned his Master's of Science in Nutrition from Keiser University and completed his undergraduate degree in dietetics at Saint John’s University.
He has worked in the field of nutrition since 2017 and has been a registered dietitian since 2020, with experience across inpatient, outpatient, and nonprofit settings.
He works with a wide range of conditions, with particular focus on weight management, diabetes, gastrointestinal health, and helping patients build a healthier, more sustainable relationship with food.
Jacob’s goal is to help patients create realistic, long-term lifestyles that support both physical and emotional well-being. His approach combines meeting patients where they are, reviewing labs, and applying evidence-based nutrition strategies.
Outside the clinic, Jacob works full-time as an outpatient dietitian at the Minneapolis VA. He enjoys watching football, fishing, and spending time with his wife, young son, and their dog in the Twin Cities.
Jacob believes nutrition is rarely “easy.” Even with expertise, food can be complex, emotional, and deeply personal. That’s why he emphasizes progress over perfection, collaboration over judgment, and giving yourself grace as you move forward - together.
JESSIE GUTSUE, MA, RDN, IFNCP
Gut Health Dietitian & Culinary Specialist
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Jessie graduated from her dietetic internship and finished her Master's degree in dietetic education, from Western Michigan University. Her undergraduate degree was in Dietetics from Michigan State University.
While working in the food industry, Jessie pursued several food science training opportunities and began to realize her passion for food science and her love of being in the kitchen.
In 2018, she took a job better suited to family life to work at an MD run functional medicine clinic.
Through this, she fell in love with the science and depth of functional nutrition, and decided to pursue additional training with the Integrative and Functional Nutrition Academy, later earning her credentials in functional nutrition.
After working with clients in functional nutrition, Jessie learned that she most enjoyed expanding her client's diets through culinary education. So with a solid understanding of functional nutrition, and a continued passion for food science, she now places her focus on teaching others how to cook.
Jessie's cooking style is approachable. She teaches a color rich, seasonal approach for the everyday cook. Her favorite motto in the kitchen is "Just keep cooking, and next time, it'll be better
She and her husband live in Michigan with their three young kids. Outside of work, Jessie can usually be found at home with her family, in her garden, decorating their home, doing something athletic, or experimenting in the kitchen.