Her research includes iron nutrition and the assessment of marine algae as a source of food for humans.

She was the head of the Center of Experimental Medicine at Venezuelan Institute for Scientific Research in Caracas, Venezuela.

García-Casal, throughout her career has received numerous national and international awards for her scientific contributions to health and nutrition.

One of the most outstanding was the 2009 award from the Bengoa Foundation (Venezuela) for her research in the field of prevention and treatment of type II diabetes mellitus.

She graduated in nutrition and dietetics from the Central University of Venezuela in 1985, and in 1991 she obtained a doctorate in biochemistry from the Venezuelan Institute of Scientific Research (IVIC).