National leaders in nutrition, metabolism, obesity and aging research
We perform cutting-edge basic and clinical research and we train future leaders in the fields of nutritional science & obesity medicine. The division is also home to the Center for Human Nutrition, which focuses on obesity and nutrition research at the School of Medicine.

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Latest News
In battling obesity and prediabetes, combining exercise with weight loss is key (Links to an external site)
Researchers at Washington University School of Medicine in St. Louis have found that combining regular exercise with a 10% loss of body weight more than doubles sensitivity to insulin, compared with a 10% weight loss without exercise. Enhanced sensitivity to insulin has important health benefits and likely decreases the risk of Type 2 diabetes and […]
Weight loss: it’s not magic, it’s math (Links to an external site)
Obesity is a chronic disease affecting more than 40% of American adults. Losing even a little bit of excess weight can have very important clinical benefits, but knowing where to start can be challenging for many people. Washington University weight-loss specialist Samuel Klein, MD shares how the basics of your body’s energy balance – calories […]
Overeating isn’t fueling obesity, it’s too many carbohydrates in our diet, researchers say (Links to an external site)
Results are not that successful,” said Dr. Samuel Klein, director of the Center for Human Nutrition at the Washington University School of Medicine in St. Louis.