**About the Editors**

#### **William B. Grant**

William B. Grant has a Ph.D. in physics from the University of California, Berkeley (1971). He is the director of the Sunlight, Nutrition and Health Research Center, a health-research organization founded in San Francisco in 2004. He has produced over 300 publications regarding vitamin D and over 50 regarding diet, including articles, reviews, editorials, and letters to the editor. His two main interests are the study of solar UV exposure and vitamin D supplementation for optimal health and the role of nutrition in reducing the risk of chronic diseases such as Alzheimer's disease and cancer.

#### **Ronan Lordan**

Dr. Ronan Lordan is a researcher of circadian biology and nutrition at the Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, at the University of Pennsylvania. He obtained a Ph.D. in the field of nutrition and cardiovascular science and an MA in teaching, learning, and scholarship. Ronan has lectured in nutrition, genetics, and physiology at the University of Limerick. He has published several peer-reviewed articles and book chapters, and is an active reviewer and editor for several journals. His research interests include circadian biology, metabolism, and aging; dietary supplements; and discerning the mechanisms of platelet-activating factor-induced systemic inflammation in noncommunicable diseases.
