Page Banner

United States Department of Agriculture

Agricultural Research Service

Download a high-resolution (300dpi) digital image here

Image Number D1821-3

For a study assessing the contribution of skin pigmentation, sun exposure, and diet to vitamin D status, graduate student Melissa Zerofsky uses a reflectance spectrophotometer to measure a volunteer’s skin pigmentation at the ARS Western Human Nutrition Research Center in Davis, California.

Photo by Peggy Greb.

640 pixels wide: (d1821-3.jpg)

Please visit our Image Gallery

Last Modified: 8/13/2016
Footer Content Back to Top of Page