Ph.D., University of Bonn, Nutritional Sciences, 2001.
M.S., University of Bonn, Nutritional Sciences, 1996.
Dr. Kratz’s research focuses on the relationship between diet, obesity, and chronic diseases such as type 2 diabetes, cardiovascular disease, and cancers associated with obesity. Current projects include controlled dietary intervention studies in humans to better understand how diet composition affects energy and glucose homeostasis, or major determinants of glucose homeostasis including insulin sensitivity, pancreatic beta-cell function, liver fat content, and low-grade chronic inflammation. We are also conducting translational studies to improve our understanding of the etiology of low-grade chronic adipose tissue inflammation, and its relationship to adiposity and insulin resistance.
(Reading, Writing, Speaking)
English: (Fluent, Fluent, Fluent)
German: (Fluent, Fluent, Fluent)
American Diabetes Association
American Society for Nutrition
2007-2013, Assistant Member, Fred Hutchinson Cancer Research Center, Public Health Sciences Division, Cancer Prevention Program
2008-2013, Research Assistant Professor, University of Washington, School of Public Health, Epidemiology
2003-2007, Post-doctoral fellow, University of Washington, Medicine, Metabolism, Endocrinology & Nutrition
2001-2003, Post-doctoral fellow, Leibnitz-Institute of Arteriosclerosis Research
1997-2001, Ph.D. student, Leibnitz-Institute of Arteriosclerosis Research, Muenster, Germany
The effects of intermittent calorie restriction on metabolic health: Rationale and study design of the HELENA Trial.. Contemporary clinical trials. 51:28-33.. 2016.
Improvements in glycemic control after gastric bypass occur despite persistent adipose tissue inflammation.. Obesity (Silver Spring, Md.).. 2016.
Mechanisms linking the gut microbiome and glucose metabolism.. The Journal of clinical endocrinology and metabolism. :jc20154251.. 2016.
Brain regulation of appetite in twins.. The American journal of clinical nutrition.. 2016.
Factors Associated with Multiple Biomarkers of Systemic Inflammation.. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.. 2016.
Short-Term Estrogen Withdrawal Increases Adiposity in Healthy Men.. The Journal of clinical endocrinology and metabolism. :jc20161482.. 2016.
No association between blood telomere length and longitudinally assessed diet or adiposity in a young adult Filipino population.. European journal of nutrition.. 2015.
Metabolic responses to a traditional Mexican diet compared with a commonly consumed US diet in women of Mexican descent: a randomized crossover feeding trial.. The American journal of clinical nutrition.. 2015.
No difference in ad libitum energy intake in healthy men and women consuming beverages sweetened with fructose, glucose, or high-fructose corn syrup: a randomized trial.. The American journal of clinical nutrition. 102(6):1373-80.. 2015.
Metabolic dysfunction drives a mechanistically distinct proinflammatory phenotype in adipose tissue macrophages.. Cell metabolism. 20(4):614-25.. 2014.
Cruciferous vegetables have variable effects on biomarkers of systemic inflammation in a randomized controlled trial in healthy young adults.. The Journal of nutrition. 144(11):1850-7.. 2014.
Inflammation and oxidative stress markers and esophageal adenocarcinoma incidence in a Barrett's esophagus cohort.. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. 23(11):2393-403.. 2014.
Intraindividual variability over time in plasma biomarkers of inflammation and effects of long-term storage.. Cancer causes & control : CCC.. 2014.
Dairy fat intake is associated with glucose tolerance, hepatic and systemic insulin sensitivity, and liver fat but not β-cell function in humans.. The American journal of clinical nutrition.. 2014.
Comparison and validation of 2 analytical methods for measurement of urinary sucrose and fructose excretion.. Nutrition research (New York, N.Y.). 33(9):696-703.. 2013.
Effects of a high-protein diet on regulation of phosphorus homeostasis.. The Journal of clinical endocrinology and metabolism. 98(3):1207-13.. 2013.