Pregúnteles a los Científicos fue creado para ayudar a las personas a conocer y adquirir un entendimiento de la ciencia que hay detrás de los productos de alta calidad de USANA. El enfoque de USANA se centra en crear productos nutricionales de alta calidad basándose en una simple premisa: si las células de su organismo reciben exactamente la nutrición que necesitan, su salud se beneficia.  Este concepto impulsa nuestra incesante motivación para innovar y hacer avanzar la ciencia de la nutrición, poniendo una vida sana y feliz al alcance de todos.

Además de desarrollar algunos de los mejores suplementos para la salud del mundo, USANA también ofrece al público información sobre el cuerpo humano, la salud y el impacto de los productos USANA en el organismo. Puede encontrar esa información aquí en https://askthescientists.com/es/ Esta sección ofrece desde respuestas rápidas a algunas de sus preguntas sobre los productos USANA hasta consejos para tomar el control de su salud.

Miembros del equipo de Investigación y Desarrollo de USANA y de Pregúnteles a los Científicos


Rob Sinnott, PhD

Director de Asuntos Científicos

Dr. Maddela has more than 38 years of experience in the field of public health which incorporates 16 years in the global dietary supplement industry. He taught at academic institutions, and worked with non-governmental organizations. He designed, implemented and evaluated many successful public health programs in the Southeast Asia Pacific region funded by prestigious international agencies.  Dr. Maddela has Public Health and Medicine Degrees. He has Master of Public Health with from the School of Public and Community Medicine, Hebrew University in Israel. He attended clinical trial course at the Bloomberg School of Public Health, Johns Hopkins University, and completed the Executive Leadership Program from the University of Oxford.  Dr. Maddela managed clinical studies with academic and research organizations to uphold USANA’s reputation as a science-based company. He also leads science education to ensure compliant, positive message and provide an exceptional customer experience for USANA global customers.

Rolando L. Maddela, MPH, MD, CCRP

Director Ejecutivo de Educación de Salud Global e Investigación Nutricional

Russ Barton, MS, CNS, CISSN

Científico Senior, especialista en Nutrición

Austin Winegar

Gerente Senior de Pregúnteles a los Científicos

Kenny Tan

Director de Educación Científica y Salud

David Baker

Gerente Senior de Edición

Dr. Brewer joined USANA in 2016 as a senior scientist, with a background in molecular biology and nutrition. She completed her bachelor’s degree in biological sciences at the University of Alaska Anchorage and her PhD at the University of Alabama at Birmingham. Her dissertation work investigated impacts of diet and nutrition on aging and longevity.  Dr. Brewer’s interest in improving health through science led her to USANA. Since joining USANA, she has focused on all stages of product development, particularly products centered on the human microbiome—including research, design, and evaluation. She led the launch of the USANA Oral Probiotic, gives trainings and presentations internally and externally to associates, and guides new product development.

Rachel Brewer, PhD

Directora de Investigación de Nuevos Productos

Jeremy Tian, PhD, MD

Directora de Investigación de Nuevos Productos

Keijun has been showing her leadership in the development of supplement, food, and personal care products for almost 25 years. She holds a degree in pharmacology from Showa Pharmaceutical University in Japan, and she is a licensed pharmacist. She is also a cosmetic formulation chemist certified by the Institute of Personal Care Science in Australia. She is also member of the New York Society of Cosmetic Chemist and the American Oil Chemists’ Society.  Keijun leads USANA’s skincare product development, collaborating with the leading skincare manufacturing company in Japan, and successfully launched the Celavive skincare line globally in 2018. Keijun continues developing skincare products, working closely with USANA’s marketing department to meet more personalized and market-driven product needs.

Keijun Koh

Director de Desarrollo de Productos

Mark Levy, PhD

Director de Validación de Productos

Katie Burton

Gerente Senior de Desarrollo de Productos