Alyssa O'Brien, RDN, LD

(503) 963-2707
Areas of Focus: 
Functional Bowel Disorders
Inflammatory Bowel Disease (IBD)
Irritable Bowel Syndrome (IBS)
Small Intestinal Bacterial Overgrowth (SIBO)

About Me

We’ve all heard the quote, ‘you are what you eat.’ That must mean that fruits and vegetables are really happy because that’s how I feel after eating them. No matter how complicated the body can seem, I am continually reminded that eating real, whole foods can be life changing in the most powerful way.

- Alyssa O'Brien, RDN, LD

Alyssa O'Brien is a registered, licensed dietitian who specializes in integrative and functional nutrition therapy for the prevention and treatment of disease. She is skilled at working one-on-one with patients struggling with a wide variety of health conditions and understands the confusion and challenges of eating healthy in today’s society. Alyssa uses an evidenced-based approach to find solutions that work with your lifestyle. She will put you at ease when faced with a new diagnosis or an ongoing condition that requires dietary changes. With a strong passion for health and wellness, she would love to help you restore digestive health, manage chronic illness, or maintain healthy weight with a real foods approach.

Other Interests: 

Alyssa enjoys trail running, camping, rock climbing, traveling, and entertaining family and friends with home cooked meals.

Education & Honors

Board Certified: 
Registered and Licensed Dietitian, Nutritionist
Education & Training: 
  • Internship, Dietetic, Mid-Willamette, 2009
  • BS, Dietetics, University of Wisconsin, Stout, WI, 2008
Other Activities: 
  • Member, Academy of Nutrition and Dietetics
  • Member, Oregon Academy of Nutrition and Dietetics
  • Member, Dietitians in Integrative and Functional Medicine Group
  • Member, Crohn's & Colitis Foundation


Check out healthy holiday eating tips with Alyssa O'Brien here.