Pure Nutrition Learn to Eat Healthy With Your Own Nutritionist!
Personalized nutrition counseling for weight management, health diagnosis, and clean eating.
What We Do
Weight Management
Diet and exercise need to be balanced in order to achieve successful weight loss. You can exercise as much as you'd like but if you are not eating healthy, you will not receive the full benefit of weight loss, and vice versa. We can educate you on ways to incorporate healthy eating and exercise into your lifestyle and create an individualized plan to achieve your goals.
New Health Diagnosis?
We specialize in helping individuals navigate new health diagnosis with confidence and clarity. Whether you've been diagnosed with IBS or another gastrointestinal condition, pre-diabetes, diabetes, heart disease, high cholesterol, high blood pressure, cancer, Parkinson's disease, multiple sclerosis, are pregnant, or are managing obesity, we're here to guide you every step of the way. Our personalized nutrition counseling also includes education and support for individuals using GLP-1 medications, helping you maximize their benefits while building sustainable, healthy habits. We believe that with the right nutrition education, practical tools, and compassionate support, everyone can live a healthy, fulfilling life. Our goal is to empower you with the knowledge and confidence to make lasting lifestyle changes that improve your health and overall well-being.
Clean Eating
Clean eating will clear out toxins from your body and give your digestive system a break to heal and restore naturally, before introducing new eating habits and food. Your mentality and how you view food will drastically alter how effective weight loss and detox will work. Our goal is to set you up for success and shift the way you relate to food.
Eileen Hsiung, RDN
Nutritionist
Hi, I'm Eileen! I've had the privilege of serving the Irvine and Tustin communities as a Registered Dietitian Nutritionist since 2002. After graduating from California State University, Long Beach with a degree in Nutrition and Dietetics, I discovered my passion for helping people use food as a powerful tool to improve their health and quality of life. Over the past 20+ years, I've worked with individuals facing a wide range of health conditions, including IBS and other gastrointestinal disorders, diabetes and pre-diabetes, heart disease, cancer, neurological disorders such as Parkinson's disease and multiple sclerosis, weight management, and overall wellness. I also enjoy helping clients who are using GLP-1 medications learn how to nourish their bodies and create healthy habits that last. My philosophy is simple: nutrition shouldn't be confusing or overwhelming. My goal is to help you understand your diagnosis, feel confident in your food choices, and create a plan that fits your lifestyle, not the other way around. I believe healthy eating can be enjoyable, realistic, and sustainable, and I'm committed to meeting you where you are with practical guidance, encouragement, and compassion. Whether you're looking to manage a new diagnosis, improve your health, or simply feel your best, I'm honored to be part of your journey. Together, we'll create a personalized plan that helps you feel empowered, healthier, and confident in your ability to live a vibrant, fulfilling life.
See What Eileen Is Up ToSuccess Stories
Real people, real results.
“Eileen completely changed the way I think about food. After being diagnosed with Type 2 diabetes, I was overwhelmed — but she created a plan that actually fit my life. My A1C dropped significantly in just 3 months!”
Maria T.
Diabetes Management
“I've tried every diet out there. Working with Pure Nutrition OC was different — no gimmicks, just real guidance. I lost 28 lbs and finally feel like myself again.”
James R.
Weight Management
“I came in struggling with IBS for years. Eileen identified my trigger foods and built a clean eating plan around my needs. I haven't felt this good in a decade.”
Sandra K.
Clean Eating & IBS
“As someone with PCOS, finding the right nutrition plan felt impossible. Eileen's expertise and patience made all the difference. I finally have energy and my hormones are more balanced.”
Priya M.
PCOS Nutrition
Contact Us
Start Your Health Journey With Us
For general inquiries, please contact us.
Feel free to call (949) 870-7506
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