He has directed a research program funded by the National Institutes of Health (NIH) for the past 10+ years and is recognized as an expert on mineral homeostasis and nutrient regulation of gene expression. Dr. Collins was presented with the Mead Johnson award from the American Society for Nutrition for outstanding research on intestinal iron absorption in 2011; he currently serves on the editorial boards for the Journal of Nutrition and the Journal of Biological Chemistry and is an academic editor for PLoS One.