Meet Mary Beth


I'm a Registered Dietitian who specializes in various ketogenic diet therapies. I have worked in the field of dietetics and nutrition for the past 27 years.  I've spent the past 7 years helping to develop the current ketogenic diet program at Dell Children's Medical Center & focusing on all the various types of diseases the ketogenic diet can help manage. Witnessing the benefits of the diet for those who otherwise were running out of medical options, has been inspiring.  I have found working with the families who follow the ketogenic diet so rewarding and I look forward to providing nutritional guidance to those who may benefit from trialing ketogenic diet therapies. By collaborating with your physician, we can offer an alternative to treat epilepsy, and other diagnosis, using the most appropriate form of the ketogenic diet therapies to best meet your personal and medical needs.


Did you know that avocados are a great food to incorporate into to all forms of the ketogenic diets?  They are naturally  high in fat and fiber and full of healthy fats while remaining very low in carbohydrate.

Diet Therapy Options:
  • Ketogenic Diet 

  • Modified Atkins Diet 

  • MCT Oil Diet

  • Low Glycemic Index Therapy


Ketogenic Diet Therapies of Texas
Mary Beth Joy, MS, RD, CSP, LD
Fax: 512-216-6366

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