Who Is Marissa

My name is Marissa and I’m a Registered Dietitian with a private practice in Rolling Hills Estates, Ca. I work with clients of all ages throughout the South Bay. I have a passion for developing trusting relationships with my clients to help them live a life free from worry about food and their bodies. I am a firm believer in HAES (Health at Every Size) and the need to help my clients sift through the
many confusing diet and “wellness” messages that are out there. My work is rooted in evidence based research to ensure that my clients are being cared for in a safe and nurturing way. I regularly collaborate with other treatment team members such as therapists, medical doctors, or treatment centers in order to facilitate a collaborative care approach.

Experienced working with clients struggling with: Eating disorders, disordered patterns of eating, chronic dieting, pre-diabetes and diabetes, picky eating, performance improvement for sports, general wellness concerns. Experienced with contracting with companies to provide nutrition services.


Past and present
client list includes: Head Start, The Canterbury, Little Sisters of The Poor, The
Salvation Army Campus at Crestmont, Beach Cities Health District.

Education: Baylor University, Glendale Memorial Hospital and Health Center

Trainings: Intuitive Eating Pro workshops, iaedp conference 2019, ongoing eating disorder learning via books, webinars, and continuing education, regular supervision and case consultations

Professional organizations and practice groups: Academy of Nutrition and Dietetics, California Academy of Nutrition and Dietetics, International Federation of Eating Disorder Dietitians (IFEDD),Sports, Cardiovascular, and Wellness Nutrition (SCAN)

".....I know my lab reports have gotten better because of my diet.  Marissa is an excellent dietician who is very patient.  I know that without the diet that she has me on, I would be on dialysis.I am an advocate for anyone that I know who has kidney problems.  I tell them what Marissa Martorana has done for me and that your diet has a lot to do with your health." 
         -Walley H.

"I hired Marissa to provide consulting services for the LAEP Early Head Start program. She addressed the nutrition referrals and provided parents with nutrition education. Marissa also created a variety of menus and a nutrition education booklet to meet the needs of the program. She also created nutrition policies and procedures for the program and provided staff training. She is professional to work with and I would highly recommend Marissa for nutrition consulting services."

        -Patino, M & Associates

Follow Marissa On

  • Instagram - White Circle
  • LinkedIn - White Circle
  • Twitter - White Circle

Dietetic Registration #961227

Tel: 424.570.1306