Research summary
Nutritional epidemiology methodology and large prospective-cohort analyses of diet, lifestyle, and chronic-disease risk anchor this research output. A 1985 American Journal of Epidemiology paper validated a 61-item semiquantitative food-frequency questionnaire (SFFQ) in 173 women administered twice approximately one year apart with four one-week diet records collected during the interval, finding intraclass correlations of 0.41-0.79 from diet records and 0.49-0.71 from the SFFQ across nutrients [3], establishing a foundational instrument for diet-disease cohort studies. A 1986 AJE paper introduced the principle of adjusting nutrient intake for total caloric intake via regression rather than using nutrient densities, to study nutrient effects independent of body size, physical activity, and metabolic efficiency in epidemiologic analyses [6]. A 2001 NEJM paper followed 84,941 female nurses from 1980 to 1996 to define a low-risk group by five variables—BMI <25, diet high in cereal fiber and polyunsaturated fat and low in trans fat and glycemic load, moderate alcohol, no smoking, and 30+ min/day physical activity—linked to type 2 diabetes risk [4]. A 2011 NEJM paper assessed lifestyle determinants of long-term weight gain in 120,877 women and men across three cohorts (followed 1986-2006, 1991-2003, and 1986-2006) at 4-year intervals using multivariable adjustment for age, baseline BMI, and other lifestyle factors [7]. A 2016 Lancet paper conducted individual-participant-data meta-analysis of 239 prospective BMI-mortality studies across 4 continents, restricting analyses to never-smokers without chronic disease who survived 5 years to limit confounding and reverse causality (3,951,455 participants, 385,879 deaths) [5]. The 2008 WCRF/AICR Second Expert Report on food, nutrition, physical activity, and cancer prevention provided evidence-based recommendations [1], and the textbook Nutritional Epidemiology codified the field's research methodology [2].
Recent publications
- Food in the Anthropocene: the EAT–Lancet Commission on healthy diets from sustainable food systemsDOI
- Food, nutrition, physical activity, and the prevention of cancer: a global perspectiveDOI
- Nutritional EpidemiologyDOI
- REPRODUCIBILITY AND VALIDITY OF A SEMIQUANTITATIVE FOOD FREQUENCY QUESTIONNAIREDOI
- Options for keeping the food system within environmental limitsDOI
- Diet, Lifestyle, and the Risk of Type 2 Diabetes Mellitus in WomenDOI
- Body-mass index and all-cause mortality: individual-participant-data meta-analysis of 239 prospective studies in four continentsDOI
- TOTAL ENERGY INTAKE: IMPLICATIONS FOR EPIDEMIOLOGIC ANALYSESDOI
- Changes in Diet and Lifestyle and Long-Term Weight Gain in Women and MenDOI
- Estimation of optimal serum concentrations of 25-hydroxyvitamin D for multiple health outcomesDOI
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External profiles
- ORCID: https://orcid.org/0000-0003-1458-7597
- OpenAlex: openalex.org
Profile compiled from public sources (Researchmap, OpenAlex, Osaka University faculty directory). Last refreshed 2026-05. Report incorrect information.