Nutritional Biomarkers Branch
The Nutritional Biomarkers Branch (NBB) conducts research, develops methods, and analyzes essential nutrients (e.g., vitamins), nonessential nutrients (e.g., certain fatty acids), and bioactive dietary compounds (e.g., phytoestrogens and aflatoxin) that are responsible for changes in health status. For many of these essential nutrients and dietary compounds, the Branch produces population-based exposure levels segmented by age, sex, and race or ethnicity. This information is available in CDC’s National Report on Selected Biochemical Indicators of Diet and Nutrition.

- Quality Control Materials for Serum or Whole Blood Folate
- Quality Control Materials for Serum Micronutrients
- Performance Verification Program for the Folate Microbiologic Assay
- Performance Verification Program for Serum Micronutrients
- Vitamin A Laboratory – External Quality Assessment (VITAL-EQA) Program
- Nutritional Biomarkers Branch Publications
- CDC’s Second Nutrition Report: Infographic
- CDC’s Second Nutrition Report: At-a-Glance Podcastmedia icon
- CDC’s Second Nutrition Report: Podcast Transcriptpdf icon
- Your Health – Your Environment Blog: Are We Getting Enough Vitamins and Nutrients?
- Your Health – Your Environment Blog: Folic Acid