Mary Beth Joy wearing a blue shirt and smiling in front of a white backdrop.

Mary Beth Joy, MS, RD, LD

Appointments: 1-512-628-1855


University of Kansas Medical Center, MS, Clinical Nutrition

University of Central Missouri, BS, Dietetics and Nutrition

Clinical Biography

Mary Beth Joy, MS, RD, LD, is a pediatric dietitian in UT Health Austin Pediatric Neurosciences at Dell Children's, a clinical partnership between Dell Children's Medical Center and UT Health Austin. She has 30 years of experience in clinical nutrition and has focused on ketogenic diet therapy for pediatrics and young adults since 2010. She and the team of dietitians at Dell Children's Medical Center provide seamless nutritional care through a ketogenic diet for inpatients.

Mary Beth Joy received her bachelor's degree in dietetics and nutrition from the University of Central Missouri. She completed a master's degree in clinical nutrition at the University of Kansas Medical Center.

Mary Beth Joy is a registered and licensed dietitian with Ascension Medical Group.


  • Low Glycemic Index Diet or LGIT
  • Medium Chain Triglyceride Diet
  • Modified Atkins Diet or MAD
  • Modified Ketogenic Diet
  • Traditional Ketogenic Diet

Board Certification

  • Licensed Dietitian, Texas Department of Licensing and Regulation

Awards & Honors

  • Recognized Young Dietitian of the Year for Missouri
  • Recognized Young Dietitian of the Year for Kansas City Metropolitan Area


  • UT Health Austin Pediatric Neurosciences at Dell Children’s - Neurology Clinic
    Dell Children's Specialty Pavilion
    4910 Mueller Blvd.
    Austin, TX 78723
    View On Map