Nneka Leiba is a public health expert with over 15 years of extensive experience advocating and working towards better environmental health policies and practices. She has a Master of Public Health degree from the prestigious Johns Hopkins University and holds a Bachelor's degree in Environmental Biology and MPhil in Zoology/Aquatic Sciences from the University of the West Indies. Leiba has gained significant recognition for her work in the environmental and public health field, including being featured in Oprah's magazine as an "Eco Role Model" and interviews with various domestic and international media outlets.

Leiba has held several research and management roles at the Environmental Working Group, including Vice President of Healthy Living Science, Director of Healthy Living Science, Deputy Director of Research, Senior Analyst, and Research Analyst. In these roles, she has played a vital role in advocating for and developing environmental policy initiatives and reports to raise awareness of environmental health and safety concerns.

As an expert in public health, Leiba has been instrumental in driving the conversation about environmental health and the impact of harmful chemicals on human health. Leiba's work has not only helped inform the public about the dangers of toxic chemicals but has also been vital in pushing for governmental and corporate policy changes to protect the public and the environment.