Viuniski is a pediatrician and nutritional expert whose main areas of interest are weight management and childhood obesity. He is also an advisor to Brazil's Health and Education Ministry for Childhood Obesity, a professor of human nutrition in graduate course work and director of nutrition service for Unimed Hospital in Rio Grande do Sul.
He is the author of "Childhood Obesity - A Practical Guide" as well as other published works. Viuniski holds a medical degree from the Escola Médica da Universidade de Passo Fundo (Medical School of Passo Fundo University) in Rio Grande do Sul; a postgraduate degree in pediatrics from Hospital Infantil Conceicao de Porto Alegre (Children Hospital Conceicao de Porto Alegre); a postgraduate degree in nutrition from ABRAN (Brazilian Association of Nutrition); and a master's degree in weight control and physical activity from Rio Grande do Sul Federal University
The Herbalife Nutrition Advisory Board is made up of leading experts from around the world in the fields of nutrition and health whose role is to educate and train Independent Herbalife Members on the principles of good nutrition, getting regular physical activity, and leading a healthy lifestyle.