Meet Our Dietitians

Changing lives every day


Our Philosophy

Eating well doesn’t mean eating perfectly. Our goal is to help you find the peace of mind and satisfaction in knowing that you are eating as well as possible. We strive to ensure you enjoy the foods you eat and also eat the foods you enjoy!

Jane Reagan MED, RDN, CEDRD

Specialties Include

  • Lifestyle Weight Management
  • Food Allergies and Sensitivities
  • Eating Disorders
  • Emotional Eating
  • Digestive Health and Wellness
  • Family and Child Nutrition
  • Body Composition Testing
  • Blood Sugar Management

Jane Reagan holds a Bachelor of Health Science degree in Health Education from the University of Arizona. She holds a Master of Education in Counseling degree from Boston University, and became a Registered Dietitian through the University of Northern Colorado. Jane’s experience in the fields of education, counseling, and nutrition spans 20 years.

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Jane Reagan’s experience in the fields of nutrition and counseling span 25 years. She believes in a holistic approach to nutrition and wellness. She holds a Bachelor’s degree in Health Education from the University of Arizona and a Masters of Education degree in Counseling from Boston University. She became a Registered Dietitian through the University of Northern Colorado. She is currently certified as an Eating Disordered Registered Dietitian, holds a certification in Adult Weight Management and is a Certified LEAP Therapist. Jane especially enjoys helping individuals to understand how food impacts them physically, mentally and emotionally. She believes that food has the power to heal, and that understanding food quality, food choices and one’s relationship with food, can lead to greater awareness, improved health and a more abundant life. Jane started her work in nutrition and wellness at Canyon Ranch Health Resort in Tucson, AZ, followed by group counseling at an in-patient eating disorders hospital in Boston. She has contributed significantly to the nutrition within the Boulder Valley School District (BVSD). As Nutrition Educator for The Growe Foundation & Garden to Table Program, she developed and taught a Colorado-based standardized nutrition curriculum for grades K-5. She co-wrote a children’s cookbook, “Cooking is Cool.” Jane’s specialties include: eating disorders; weight loss/gain; food allergies/sensitivities; gut health; adrenal fatigue, diabetes/hypoglycemia; cardiovascular disease/hypertension; Lyme disease; mindful eating/emotional eating and family/child nutrition. In addition, Jane also works as a Clinical Nutritionist at the University of Colorado at Boulder and is currently a member of their Eating Disorder Team. Jane is available for one-on-one consultations, group workshops and presentations.

Testimonials

Ashley Ellis RDN, CLT

Specialties Include

  • Lifestyle Weight Management
  • Sports Nutrition
  • Blood Sugar Management
  • Eating Disorders
  • Mindful & Intuitive Eating
  • Heart Health
  • Resting Metabolic Rate Testing
  • Body Composition Testing
  • Women’s Health
  • Cancer Prevention

Ashley is completing a Master of Education degree in Nutrition Education from Framingham State University and holds a Bachelor of Science degree in Clinical Nutrition from the University of New Hampshire. She completed her Dietetic Internship at the University of Northern Colorado with a concentration on Nutrition Management, and she is also a Certified Personal Trainer through the American College of Sports Medicine.

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Ashley strongly believes in the food first approach. Food is personal, social, emotional, interesting and can be used as preventative medicine. As a “flex-a-tarian” Ashley eats everything from cookies to kale salads and can teach you how to navigate the grey zone of moderation with ease and expertise. Five years of experience in counseling therapeutic diets at Northern Colorado Rehabilitation Hospital has provided Ashley with a wide range of knowledge on functional foods, therapeutic meal planning and the food first approach.

Ashley is completing her Masters of Education degree in Nutrition Education from Framingham State University and holds a Bachelor of Science degree in Clinical Nutrition from the University of New Hampshire. Gaining further expertise she is currently pursuing certification as both a Certified Eating Disorder Registered Dietitian and a Board Certified Specialist in Gerontological Nutrition. Ashley served on the board of the Northern Colorado Dietetics Association for the past two years where she received the Recognized Dietetic Technician Award in 2012 and 2013, and nominated for the Outstanding Registered Dietitian of the Year Award in 2014.

A Bostonian transplant, Ashley ran her first marathon this year along with completing The Mt. Evan’s Ascent. She enjoys running with her dog, adventure racing, logic board games, reading cultural studies books and trying new ice cream parlors.

Testimonials

Malia Dunn, RDN, CEDRD

Specialties Include

  • Eating Disorders
  • Emotional Eating
  • Mindful & Intuitive Eating
  • Restaurant Outings
  • Blood Sugar Management
  • HIV & Nutrition
  • Child & Family Nutrition
  • Weight Management
  • Restaurant Dining Experiential
  • Body Composition Testing
  • Resting Metabolic Rate Testing
  • Supermarket Tours

Malia is a Registered Dietitian Nutritionist who holds a Bachelor of Science degree in Dietetics and completed her post-graduate internship at the University of Northern Colorado. Malia is passionate about teaching people how to eat real, healthful foods in a manner that is scientifically proven to increase health and is a Certified Eating Disorder Registered Dietitian (CEDRD). Her nutrition philosophy and work with clients is centered on setting realistic goals, recognizing personal values, and using mindfulness (such as ACT — Acceptance and Commitment Therapy). Malia specializes in the treatment of individuals with eating disorders.

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Malia Dunn is a Registered Dietitian at Essential Nutrition where she provides individual and group counseling, specializing in the fields of eating disorders, HIV, diabetes, and general health and wellness. She currently serves as the President-Elect of the Northern Colorado Dietetic Association and was recently awarded the 2015 Recognized Young Dietitian Award. Malia earned a Bachelor of Science degree in Dietetics from the University of Northern Colorado, where she also completed her postgraduate internship. Malia’s nutrition philosophy centers on setting realistic goals, recognizing personal values, and mindfulness (such as ACT). Malia often helps her clients create meal plans, optimize their metabolism, increase nutrition knowledge, reach nutrition goals and improve blood values. Her true passion is helping others achieve a balance which enables them to nourish their bodies while truly enjoying and appreciating food. She believes food should be utilized as a tool to connect with others, improve overall well-being, and simply enjoy! Malia’s passion and early introduction to the eating disorder world has provided her with the necessary tools to treat many different types of eating disorders. She is a firm believer in a team approach and thrives when given the opportunity to collaborate with therapists, doctors, and personal trainers. While she primarily works in the outpatient setting, Malia also works at the Eating Recovery Center in Denver, and has experience working at an intensive outpatient center in Ft Collins. With a variety of treatment center settings, Malia has the experience and skills necessary to work with eating disorder clients in the outpatient setting. For the past two years Malia has worked closely with the Weld County School District 6 nutrition department to improve their industry leading from-scratch cooking Renaissance Food Program. She assisted in the implementation of the cafeteria-friendly nutrition education program, providing children with a nutrition breakdown of all food and beverage offerings. As a result of the program and Greeley’s low socioeconomic status, Malia has good knowledge of the nutrient content of many popular food items and dishes and budget-friendly meal planning. When Malia is not working you can find her in the mountains snowboarding, camping, or hiking. Check out Malia’s work with the ZisBoomBah.com Skinny Kids Blog:

Testimonials

Constance Roark, MBA, MS, RDN

Specialties Include

  • Lifestyle weight management
  • Mindful & Intuitive Eating
  • Celiac Disease and Gluten-Intolerance
  • Digestive Health and Wellness
  • Resting Metabolic Rate Testing
  • Body Composition Testing
  • Heart Health
  • Pre-Diabetes/Insulin Resistance
  • Plant-Based Nutrition

Constance Roark is a Registered Dietitian Nutritionist (RDN). She holds a Master of Science degree in Food Science and Human Nutrition from Colorado State University where she also completed her dietetic internship through the Coordinated Dietetics Program. She holds a MBA from the University of Colorado Boulder and a Bachelor of Science degree in Business Management with a minor in Biology from San Jose State University.

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In 2010, after a long career in the corporate world, Constance decided it was time to turn her lifelong passion for health and wellness into her profession so she returned to school to become a RDN. Since then she has been on the pursuit to help others live their healthiest and best lives. She has extensive experience working in the natural food industry, specifically serving those following gluten-free and plant-based lifestyles. Constance believes in a holistic and personalized approach to health and wellness and collaborates with her clients to find solutions that best meet their unique needs and circumstances. Whether dealing with nutrition challenges from mid-life weight management, chronic health issues to preventing heart disease, she believes everyone deserves to feel their best where they are at and she is committed to working with her clients to achieve their individual goals.

Constance currently serves on the board of directors for the Colorado Academy of Nutrition and Dietetics. She is a member of the Vegetarian Nutrition, Dietitians in Integrative and Functional Medicine, and Culinary Food Professionals dietetic practice groups. She has served as a volunteer nutrition educator for Cooking Matters, a Share Our Strength organization, and as a volunteer for the Longmont Worksite Wellness Taskforce for LiveWell Colorado.

Testimonials

Lisa Lanzano MS, RDN

Specialties Include

  • Eating Disorders
  • Mindful & Intuitive Eating
  • Blood Testing for Vitamin, Mineral Status
  • Resting Metabolic Rate Testing
  • Women’s Health
  • Natural & Integrative Nutrition
  • Approved Supervisor for CEDS, CEDRD certification through IAEDP (International Association of Eating Disorder Professionals)

Lisa Lanzano, MS, RDN, holds a Bachelor of Science degree in Nutrition & Food Management from Oregon State University, and a Master of Science degree in Gerontology (the study of aging), with an emphasis in Physiology & Nutrition, from the University of Arizona.

Lisa is a Registered Dietitian with 19 years of experience in the field of nutrition. She specializes in the treatment of individuals struggling with eating disorders and disordered eating.

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Lisa is a Registered Dietitian Nutritionist who specializes in working with individuals and families struggling with eating disorders and disordered eating. Lisa’s emphasis is on helping clients develop and nurture a better relationship with food, eating, and their bodies. Lisa has a true passion for this work and has been in practice for 19 years. Lisa holds a Bachelor of Science degree in Nutrition & Food Management from Oregon State University, and a Master of Science degree in Gerontology (the study of aging), with an emphasis in Physiology & Nutrition, from the University of Arizona. As a Registered Dietitian Nutritionist (RDN), Lisa spent her first six years in practice as a Clinical Nutritionist at the world-renown Canyon Ranch Health Resort in Tucson, Arizona, before moving to Colorado in early 2003. She then took the position as the sole nutritionist for the 15-physician South Denver Cardiology Center in Littleton, CO, before opening up her private practice, Essential Nutrition LLC, full time in Boulder in 2006. She has been interviewed for her expert nutrition advice by local newspapers and magazines, including Boulder, Colorado’s Daily Camera, Rocky Mountain Sports, and Delicious Living. Lisa co-authored the independently-published books Better Breast Health for Life! as well as the “Skeletal System and Joint Health,” chapter in the textbook, Integrating Therapeutic and Complementary Nutrition (CRC Press, 2006). Lisa is a member and supporter of the Eating Disorder Foundation (EDF), The National Eating Disorders Association (NEDA), The Binge Eating Disorder Association (BEDA), The Academy for Eating Disorders (AED), The National Association of Anorexia Nervosa and Associated Disorders (ANAD), and the International Association of Eating Disorder Professionals (IAEDP). In 2015, Lisa became an IAEDP-Approved Supervisor to help supervise and educate other health professionals undergoing IAEDP’s certification program, which enables health professionals to become more competent, skillful, and experienced in the field of eating disorder treatment and prevention.

Words From Lisa

I have a true passion for working with individuals struggling to overcome an eating disorder. I am not the kind of nutrition professional who criminalizes food or promotes the notion of “good” or “bad” foods. Rather, I apply the “when, why, and how much” method to determine the best dietary approach for each individual that honors one’s whole self. I love teaching individuals how to navigate their OWN way through the complicated and often conflicting world of nutrition and health. I work hard to ensure my clients come away with better self-awareness, understanding, acceptance, and education.

My goals for my work with clients include:

  • Finding true peace of mind under all eating circumstances (eating alone, around others, in a restaurant, at a friend’s house, etc)
  • Developing a more self-loving, trusting, nurturing relationship with food and eating and one’s body
  • Discerning fact from fiction in today’s nutrition media messages
  • Developing the most supportive eating style for optimal health, energy, well-being, and satisfaction
  • Promoting full recovery from any kind of eating disorder to thrive in life once again

I’d love to help you, or someone you know. Please contact me today.

Testimonials

Sasha Houseman BA, MSACN, DCNc

Specialties Include

  • Neurological/Psychological conditions
  • Gastrointestinal disorders
  • Nutrigenomics coaching
  • Endocrine conditions
  • Allergic conditions
  • Metabolic conditions
  • Cardiovascular conditions
  • Autoimmune conditions
  • Detoxification protocols
  • Sports nutrition
  • Family/developmental nutrition

Dr. Sasha Houseman has a Bachelor of Arts degree in Neuroscience and Psychology, a Master of Science degree in Applied Clinical Nutrition and a Doctorate in Clinical Nutrition.  She has many articles published in peer-reviewed journals and has recently published a cookbook called, Paleo Superfood Synergy.

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While completing her Bachelor of Arts degree in Neuroscience and Psychology, Dr. Sasha Houseman became drawn to eating disorder therapy, which led her to achieve a Master of Science degree in Applied Clinical Nutrition. Dr. Houseman continued to complete her Doctorate in Clinical Nutrition. Dr. Houseman has many articles published in peer-reviewed journals and has recently published a cookbook called, Paleo Superfood Synergy, focusing on how certain foods come together to provide a compounded health benefit for common conditions that plague our Western society.   Before finding her passion in Clinical Nutrition therapy, Dr. Houseman worked as a fitness trainer and nutrition educator for the U.S. Marine Corps in Okinawa, Japan. After working as a private practice nutrition for many years, Dr. Houseman joined the Essential Nutrition team and now offers one-on-one consultations, small group, clinical education presentations, and grocery store tours. She is passionate about managing debilitating conditions with a personalized and functional approach to nutrition in a comfortable and healing environment. Having lived in three different countries on three different continents, Dr. Houseman provides a unique and integrative approach to therapy. She is also fluent in Spanish.