Meet the Holistic Nutrition Credentialing Board

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Cathy Eason, NTP, Board Certified in Holistic Nutrition®
Nutritional Therapy Association, Inc.

Board Chair

Cathy Eason is a certified Nutritional Therapy Practitioner and Licensed Massage Therapist in private practice in Portland, Oregon as well as a writer, public lecturer, and holistic health practitioner mentor. She is a Senior NTP Lead Instructor for the Nutritional Therapy Association where she has taught the practitioner training since 2006 while also developing curriculum content and instruction team mentoring programs. With an academic background in Exercise Science & Physiology and Biochemistry, Cathy enjoys the challenge of teaching students the science of the human body in accessible ways despite our bodies' complexities. Cathy loves witnessing the many successes and incredible works of holistic nutritionists far and wide and strives to create international networks of holistic healthcare providers to spread a whole food nutrition message across the globe. Somewhat of an ‘education junkie’, Cathy has collected many additional credentials over the years but is most aligned as a Certified GAPS Practitioner, Certified AIP Coach, and Certified Food & Spirit Practitioner, bringing her vast knowledge of the workings of the human body into her deepening interest in the role of soul and spirit in holistic health. Cathy enjoys sharing her passion for education and understanding of “the big picture” with a wide variety of clients and holistic health circles, and her biggest passions now lie in creating healthy communities through good food, deeper investigation of life’s many challenges, and collaborative connections full of laughter and creativity.  

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Rebekah Fedrowitz, MHN, Board Certified in Holistic Nutrition® 

Rebekah Fedrowitz, MHN, BCHN®, is a holistic nutrition consultant, speaker, and author. She is passionate about educating a wide range of individuals and groups about holistic nutrition. Rebekah’s mission is to see holistic nutrition and natural healthcare incorporated into conventional medicine and mainstream media. She believes “alternative” healthcare should be the first line of defense for both the prevention and healing of illnesses.

Rebekah completed her Master’s diploma in Applied Holistic Nutrition from the Edison Institute of Nutrition. She is Board Certified in Holistic Nutrition and is a professional member of the National Association of Nutrition Professionals. As a consultant, speaker, and author, Rebekah has worked with a wide range of individual clients and groups to help people change their lives and finally discover the health they have been seeking. 

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K. Wesley (Wes) Harwood, MS, NT, Board Certified in Holistic Nutrition®
Institute for Health Professionals, Portland Community College

Wes Harwood, MS, has a passion for healthcare delivery and education. He began as a paramedic, trained and practiced as a Physician Assistant, and has found many opportunities to teach related subjects over the past three decades. Wes completed his Master’s Degree in Post-Secondary, Adult, and Continuing Education to enhance his teaching abilities.

Wes’s interest in complementary therapies and food (cooking is his hobby) led him to complete the Portland Community College Nutritional Therapy program. He was the first graduate to pass the NANP exam and now serves as a faculty member there.

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Jill Hillhouse, BA, BPHE, CNP, RNT, Board Certified in Holistic Nutrition®
Institute of Holistic Nutrition

Jill Hillhouse BA, BPHE, CNP, RNT, is a nutrition specialist, speaker and author.

A passionate promoter of nutrition education, Jill believes that health starts on your dinner plate. In practice, she focuses on addressing her clients’ metabolic individuality as a key factor in her functional nutrition protocols and coaching. A strong voice for self-advocacy, Jill encourages and empowers her clients to be active participants in their own health care and uses diet and lifestyle shifts as the foundation of her protocols.

Working as a nutritional practitioner since 2003, Jill is part of the integrative health team at P3 Health Clinic in Toronto, Canada, and she also maintains a thriving private nutrition consultation practice. Jill is the co-author of The Paleo Diabetes Diet Solution: Manage Your Blood Sugar with 125 Recipes and a 30-Day Meal Plan and the best-selling book The Best Baby Food: 125 Healthy & Delicious Recipes for Babies & Toddlers.

Jill Hillhouse is a Certified Nutritional Practitioner (CNP) from The Institute of Holistic Nutrition and has earned her Bachelor of Physical and Health Education (BPHE) and her BA in Psychology from Queen’s University. She is certified as a First Line Therapist in Lifestyle Medicine by Metagenics and as a Stress and Wellness Consultant by the Hans Selye Foundation and The Canadian Institute of Stress.

Jill has been a faculty member of The Institute of Holistic Nutrition since 2005 and currently teaches the Continuing Education Course Blood Sugar Management in Clinical Practice. She is also a Student Clinic Advisor at IHN. Jill serves on the Holistic Nutrition Credentialing Board of the National Association of Nutritional Professionals (NANP) and is a member of The Canadian Association of Natural Nutrition Practitioners and the Institute of Functional Medicine.

Follow Jill on her website, Facebook, Twitter and Instagram for commentary about new scientific studies, topical health issues and practical tools for better health.

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Cordelia McFadyen, RHN/CHN, Board Certified in Holistic Nutrition®
Pacific Rim College

Cordelia McFadyen, RHN/CHN, is the owner and holistic nutritionist at Inspired Living Nutrition Inc. After suffering for years from unknown food sensitivities and actively working her way back to strong health through proper nutrition, she was inspired and determined to take her education further so that she could help empower others back to great health. After earning her R.H.N./C.H.N. designation from the Canadian School of Natural Nutrition she began to help others reveal their best level of health through the combination of proper nutrition, daily movement, and specific supportive lifestyle habits. Combing her passion for nutrition and supporting the holistic nutrition industry she also serves as the Assistant Dean to the School of Holistic Nutrition at Pacific Rim College. Cordelia also loves to talk so you can find her spreading her love of local, organic, delicious and nutritious foods at various events in Calgary and Victoria, as well as for corporate groups and private parties.

Apart from touting the benefits of greens and lemon water to anyone who will listen, she is an avid outdoors-woman who enjoys long hikes, canoeing, crabbing, reading, dancing with friends and tending to her garden. She is also a proud board member of the Holistic Nutrition Credentialing Board (HNCB). Cordelia splits her time between Calgary AB, and Victoria, BC and in her free time can be found walking her awesome Chihuahua Juno and writing about herself in the third person. 

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Kirstin Nussgruber CNC, EMBBoard Certified in Holistic Nutrition®

Kirstin Nussgruber CNC, EMB is a cancer nutrition expert, author, and speaker. Kirstin is passionate about helping people get out of cancer overwhelm by teaching them how to reclaim their lives. A two-time cancer survivor herself she learned first-hand the importance of an integrative and functional medicine approach to one’s health to facilitate true healing. She offers personalized mentoring packages to private clients and in collaboration with functional medicine practitioners. Kirstin can be hired for speaking engagements where she advocates for a complementary approach to augment traditional cancer care, and practice proactive prevention.

Kirstin is the bestselling author of Confessions of a Cancer Conqueror – My 5 Step Process to Transform Your Relationship with Cancer and creator of First Steps to Take Control of Your Cancer Care, an online self-help program for people looking for an evidence-based start to their healing journey.

Kirstin shares her inspiring blogs and self-created recipes at, and is part of the Chilkov Clinic as well as the team at Valley Integrative Pharmacy.

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Dorene Petersen, BA, Dip.NT, Dip.Acu, RH (AHG), Board Certified in Holistic Nutrition®
American College of Healthcare Sciences

Dorene Petersen, BA, Dip.NT, Dip.Acu, RH (AHG), Dorene is the Founder and President of the American College of Healthcare Sciences (ACHS). She has more than 35 years’ experience in higher education administration as well as clinical aromatherapy, botanical medicine, holistic nutrition, and other areas of holistic health and wellness. Dorene lectures across the U.S. and internationally on wellness topics, most recently at the 2012 and 2014 Asian Aroma Ingredients Congress & Expo, the annual conferences for the International Federation of Essential Oils and Aroma Trades (IFEAT), and the 2014 Northwest Regional Lavender Conference. She also shares her expertise through various publications, including the International Journal of Professional Holistic Aromatherapy and Massage Magazine, as well as TV and radio shows, including Good Morning Oregon, the national radio show Voice of America, KPTV Better Portland, In the Garden, and Wise Woman Radio with Susun Weed. Dorene was a recipient of the 2014 NANP Service Award and is a frequent contributor to NANP’s E-Zine.

Julie Rauch, MBA, NC, Board Certified in Holistic Nutrition®

Julie Rauch, MBA, NC, Board Certified in Holistic Nutrition®  is a Certified Nutrition Consultant & Natural Chef graduate of Bauman College. She began her service at NANP on the executive board of the (then) Berkeley branch in 2005. She joined the national board in 2009 as treasurer before stepping into the role of president in 2012. In private practice, Julie specializes in hard to resolve health issues including hormonal imbalances, chronic infections, and heavy metal & chemical chelation using whole food supplements. She teaches practical "no excuses" healthy eating and cooking strategies to support the health and well-being of her clients. Certified in AcuPoint Integrative Testing (AIT), Julie uses this comprehensive system to evaluate her client's unique nutritional needs and create customized supplement protocols for them without the need for laboratory testing. Julie is the nutritionist for Advance International, Inc., producer of the odorless, tasteless, marine-based Advance Protein Powder. In addition, she provides nutrition consulting services to the employees of Standard Process of Northern California.

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Julie Thenell, BS, MS, NC, Board Certified in Holistic Nutrition®
Bauman College

Julie believes good health is as close as your kitchen. Board Certified in Holistic Nutrition®, Julie’s practice is based on nutrient-dense whole food and lifestyle choices that support health and well-being, especially during times of high stress and transitions. Her role is to educate, guide and support individuals in positioning themselves to better respond to the inevitable stressors of life.

In addition to her private nutrition practice and serving on the Holistic Nutrition Credentialing Board, Julie is a Distance Learning Instructor for Bauman College. She is proud to align herself with professionals who share the belief that nutrition and lifestyle play critical roles in health and are taking steps to make significant changes in the health of our nation.

Part of Julie’s “lead by example” lifestyle includes hiking, biking, running, swimming, snowshoeing, reading, cooking and sipping tea. She is on a mission to inspire others to live a vibrant life in spite of daily stressors. Learn more by visiting

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Helayne Waldman, EdD, MS, Board Certified in Holistic Nutrition®
Hawthorn University

Dr. Helayne Waldman has been investigating the relationship between cancer and nutrition since her father was diagnosed with lung cancer in the 1990s. She formalized her studies at Bauman College in 2003 and has been involved in the area of oncology nutrition full time since 2007. In 2012 Helayne published, with co-author Ed Bauman, her first book: The Whole Food Guide for Breast Cancer Survivors, which continues to be an Amazon bestseller in the category of nutrition and cancer. In addition to teaching at Hawthorn University, Helayne is a member of the teaching staff at the University of Western States, Human Nutrition and Functional Medicine Program and is a regular lecturer and workshop facilitator for the Cancer Support Community, a national nonprofit (formerly known as Gilda's Club). She has contributed articles to the Townsend Letter for Doctors and Patients, GreenMedInfo and other online health blogs, and is a Board member of the Annie Appleseed Project, which puts on a yearly conference on Alternative and Complementary treatments for cancer in West Palm Beach, Florida. Helayne has a private practice in Oakland, California, where she works with clients to optimize their cancer deterrence strategies, specializing in breast cancer.


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Dr. Thomas O'Bryan, DC, CCN, DACBN, Board Certified in Holistic Nutrition®

Dr. Thomas O'Bryan, DC, CCN, DACBN is an Internationally recognized speaker and workshop leader specializing in Gluten Sensitivity, Celiac Disease, and the triggers in the development of autoimmune disease. He is a 'Sherlock Holmes' for chronic disease and metabolic disorders. He is a clinician par excellence in treating chronic disease and metabolic disorders from a Functional Medicine Perspective. He holds teaching Faculty positions with the Institute for Functional Medicine and the National University of Health Sciences. Dr. O'Bryan is always one of the most respected, highly-appreciated speakers. His books have won National Book awards and been #1 in many categories Dr. O'Bryan's passion is in teaching the many manifestations of Gluten Sensitivity and Celiac Disease as they occur inside and outside of the intestines.

 Rose O'Leary

Rose O’Leary, BA, Board Certified in Holistic Nutrition®
Canadian School of Natural Nutrition

Rose O’Leary is the Executive Director and Registrar of the 13 branches of the Canadian School of Natural Nutrition. She is actively involved in training the Branch Managers, and in creating and enforcing CSNN’s operational policies and procedures. As Registrar, Rose makes final rulings on student issues and oversees the grading system, student records, and graduation requirements.

Since 1997, Rose has been working with industry associations, stakeholders, and industry employers to promote both CSNN and holistic nutritionists. She continues to be an advisor to the NANP’s Credentialing Board.