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 people understand new health diagnosis, from IBS, or other gastrointestinal issues, pre-diabetic, diabetes, heart disease, high cholesterol, high blood pressure, cancer, Parkinson's, Multiple Sclerosis, pregnancy, PCOS, and Obesity.  

We believe clients can live a healthy, happy life with knowledge of nutrition and a healthy life style.

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. 


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Our Team


Eileen Hsiung, RDN

Eileen has been a Dietitian/ nutritionist in Irvine and Tustin since 2002. Graduating from California State University, Long Beach.  She has worked in the Orange County area specializing in gastrointestinal issues including IBS, Diabetes, PCOS, cancer, neurological disorders, cardiovascular disease, weight loss nutrition, and overall health.

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Start Your Health Journey With Us

For general inquiries, please contact us.

Feel free to call 949-870-7506

Pure Nutrition OC

Tustin, CA

(949) 870-7506

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