Meet Our San Antonio Team

Dr. Jacob Torres DC, D.PSc

Founder of the Institute for Functional Health

After seeing family members struggle with health issues all of his life, Dr. Torres was inspired to research why people suffered from debilitating conditions and how the body could be restored to its natural state.

Dr. Torres has helped thousands of patients to find relief from chronic conditions such as high blood pressure, inflammatory disorders, chronic fatigue & pain, diabetes, and numerous autoimmune . . . Read more . . . 

Dr. Brad Niewierowski DC, D.PSc

Dr. Niewierowski has been in practice for over 18 years and has helped thousands of patients achieve their goals of living a healthier, more fulfilling, higher quality of life.

Dr. Brad Niewierowski is a Midwestern transplant to San Antonio since 2008. He has brought with him over 2 decades of study, practice and passion in natural health and healing. He hopes to share with as many patients as possible the lifestyle keys for reducing the risk for chronic, degenerative diseases and for reversing the damage that can be caused by those conditions.  Read more . . .

Dr. Sid Moreno, DC

Dr. Sid Moreno was born and raised in the beautiful Texas Hill Country about an hour west of San Antonio. He graduated from Comfort High School where he partook in multiple sports throughout the years and this is when an injury lead him to see a chiropractor for the first time at age 16.

After seeing how chiropractic differs from traditional medicine, a passion for chiropractic and overall health was ignited. Serving others through the health community has always been a dream for Dr. Moreno since his mother, Elizabeth, and brother, Anthony, have helped others for many years as nurses. Dr. Moreno liked the natural approach to helping others through nutrition, exercise, and wellness care, and by this Dr. Moreno’s passion to serve only grew deeper.

  Read more . . .

Dr. Khym B. Zarzuela, DO

Medical Director of the 

Institute for Functional Health

Khym B. Zarzuela, D.O. is an AARM (American Academy of Anti-Aging Medicine) Practitioner who has embraced the principles of Anti-Aging Medicine into his practice of whole patient wellness.

His goal is to deliver vibrant, balanced, pain free and healthy lives using balanced hormones and cutting edge therapies for pain management.

Dr. Zarzuela has been practicing family medicine and urgent care since 1994 in the Central/South Texas area including San Antonio, Austin, New Braunfels and Floresville. In late 2010, he was introduced to the benefits of anti-aging medicine involving hormonal replacement and the satisfaction it brought his patients.  Read more . . . 

Blanca Castro, MSN, RN, FNP-C 

Blanca Castro, is a native of South Texas and was born and raised in the border town of Laredo, Texas.  Growing up she saw her grandparents and her father struggle with chronic illnesses so directing her studies towards the medical field was the path she decided to take. 

She set to San Antonio with the goal to pursue a career in nursing.  Starting off at the University of Texas at San Antonio she was then accepted to the University of Texas Health Science Center at San Antonio and completed her Bachelor’s of Science in Nursing in December 2009.  Read more . . .