Keeping America Healthy: ARS's Human Nutrition Centers
USDA’s Agricultural Research Service (ARS) is conducting ground-breaking research on human nutrition, paving the way for Americans to lead healthier lives while reducing the risk of diseases. Our research supports human health at all stages of life by better understanding relationships between nutrient intake, eating patterns, exercise, health conditions disease prevention, and how nutrition promotes health. ARS has six human nutrition research centers in Maryland, North Dakota, Massachusetts, Texas, Arkansas, and California. Our research on human nutrition gives Americans the tools and knowledge to make science-backed decisions for taking care of their bodies.

Human nutrition research as we know it has its origins in the work of ARS chemist Wilbur Olin Atwater (1844-1907). Dr. Atwater developed a system of assigning a calorie value to each gram of protein, fat, and carbohydrate found in foods. These calorie values were known as the “Atwater Factors” and pioneered the Nutrition Facts label that can be found on food containers today. Fast forward over 100 years, and ARS today provides Americans with research findings that they can use to stay healthy and happy. We even have a web-based App known as FoodData Central, which enables users to see the nutrient breakdown of thousands of food products.
ARS scientists support human health at all stages of life by conducting research to better understand relationships between nutrient intake, eating patterns, and health conditions and how nutrition promotes health.