Walter Willett | |
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Born | [1] Hart, Michigan, United States [2] | June 20, 1945
Education |
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Spouse | Gail Pettiford Willett [3] |
Children | 2 [4] |
Scientific career | |
Fields | nutrition, epidemiology, medicine, public health research |
Institutions |
Walter C. Willett (born June 20, 1945) [1] is an American physician and nutrition researcher. He is the Fredrick John Stare Professor of Epidemiology and Nutrition at the Harvard School of Public Health and was the chair of its department of nutrition from 1991 to 2017. [5] [6] [7] He is also a professor of medicine at Harvard Medical School. [8]
Willett is the principal investigator of the second Nurses' Health Study (NHS2 or NHS II), a compilation of studies regarding the health of older women and their risk factors for major chronic diseases. [9] He has published more than 1,500 scientific articles regarding various aspects of diet and disease [10] and is the second most cited author in clinical medicine. [11]
Willett is perhaps best known for his 2001 book Eat, Drink, and Be Healthy and the ensuing controversy over it. The book presents nutritional information and recommendations based on what was then the consensus of nutrition scientists, and is critical of many misconceptions about diet and nutrition, including ideas presented by guidelines from American organizations such as the USDA. [12] Willett is frequently quoted by the media in articles regarding nutrition. [13] [14] [15] [16]
In 2016, Semantic Scholar AI program included Willett on its list of top ten most influential biomedical researchers. [17]
Willett has been actively involved in helping Harvard University food services to update their offerings along current nutritional guidelines. While his work has influenced the menu choices, students and Willett have noted that the menus still have a long way to go to reflect the currently available nutrition science. [6] [18]
Willett has been a high-profile critic of research into the so-called "obesity paradox" posited by, among others, American epidemiologist Katherine Flegal and her colleagues at the Centers for Disease Control and Prevention's National Center for Health Statistics, going so far as to call it a "pile of rubbish ... No one should waste their time reading it." [19] In 2013, the journal Nature ran an editorial rebuking Willett for the style and manner of his criticism, saying it misrepresented the complexity of the science involved and used inappropriate language in doing so. [20]
In 2021, Flegal published an article in the journal Progress in Cardiovascular Diseases accusing Willett and some of his Harvard School of Public Health colleagues of being part of "an aggressive campaign that included insults, errors, misinformation, social media posts, behind-the-scenes gossip and maneuvers, and complaints to her employer." [21] Flegal wrote that the goal Willett and his allies "appeared to be to undermine and discredit her work," and that, "The controversy was something deliberately manufactured, and the attacks primarily consisted of repeated assertions of preconceived opinions." Flegal also questioned Willett's competence to criticize her team's statistical research, as he "was not a statistician and had no expertise in estimating the number of deaths associated with obesity." [21]
A 2013 article in The Boston Globe described Willett as the "world's most influential nutritionist". [22]
Willett's book Eat, Drink, and Be Healthy received a high-score at Red Pen Reviews who concluded that it "provides solid science backed advice without much hype. The dietary advice can be applied to a variety of dietary patterns and preferences. Adoption of the advice is likely to lead to improved health outcomes." [23] John Swartzberg and Sheldon Margen positively reviewed the book in the American Journal of Epidemiology , describing it as "one of the few books on nutrition and health written for the lay public that is based on a careful and thoughtful analysis of (of all things) science!". [24]
A fad diet is a diet that is popular, generally only for a short time, similar to fads in fashion, without being a standard scientific dietary recommendation, and often making unreasonable claims for fast weight loss or health improvements; as such it is often considered a type of pseudoscientific diet. Fad diets are usually not supported by clinical research and their health recommendations are not peer-reviewed, thus they often make unsubstantiated statements about health and disease.
The Mediterranean diet is a concept first invented in 1975 by the American biologist Ancel Keys and chemist Margaret Keys. The diet took inspiration from the supposed eating habits and traditional food typical of southern Spain, southern Italy, and Crete, and formulated in the early 1960s. It is distinct from Mediterranean cuisine, which covers the actual cuisines of the Mediterranean countries, and from the Atlantic diet of northwestern Spain and Portugal. While inspired by a specific time and place, the "Mediterranean diet" was later refined based on the results of multiple scientific studies.
A healthy diet is a diet that maintains or improves overall health. A healthy diet provides the body with essential nutrition: fluid, macronutrients such as protein, micronutrients such as vitamins, and adequate fibre and food energy.
The Nurses' Health Study is a series of prospective studies that examine epidemiology and the long-term effects of nutrition, hormones, environment, and nurses' work-life on health and disease development. The studies have been among the largest investigations into risk factors for major chronic diseases ever conducted. The Nurses' Health Studies have led to many insights on health and well-being, including cancer prevention, cardiovascular disease, and type 2 diabetes. They have included clinicians, epidemiologists, and statisticians at the Channing Laboratory, Harvard Medical School, Harvard School of Public Health, and several Harvard-affiliated hospitals, including Brigham and Women's Hospital, Dana–Farber Cancer Institute, Children's Hospital Boston, and Beth Israel Deaconess Medical Center.
A fat tax is a tax or surcharge that is placed upon fattening food, beverages or on overweight individuals. It is considered an example of Pigovian taxation. A fat tax aims to discourage unhealthy diets and offset the economic costs of obesity.
The Western pattern diet is a modern dietary pattern that is generally characterized by high intakes of pre-packaged foods, refined grains, red meat, processed meat, high-sugar drinks, candy and sweets, fried foods, industrially produced animal products, butter and other high-fat dairy products, eggs, potatoes, corn, and low intakes of fruits, vegetables, whole grains, pasture-raised animal products, fish, nuts, and seeds.
George L. Blackburn was the S. Daniel Abraham Professor of Nutrition and associate director of the division of nutrition at Harvard Medical School. He was also director of the Center for the Study of Nutrition Medicine (CSNM) in the Roberta and Stephen R. Weiner Department of Surgery, and director of the new Feihe Nutrition Laboratory at Beth Israel Deaconess Medical Center (BIDMC), Boston, Massachusetts.
Obesity is common in the United States and is a major health issue associated with numerous diseases, specifically an increased risk of certain types of cancer, coronary artery disease, type 2 diabetes, stroke, and cardiovascular disease, as well as significant increases in early mortality and economic costs.
Based in Washington, D.C., Leadership for Healthy Communities is a $10-million national program of the Robert Wood Johnson Foundation designed to engage and support local and state government leaders nationwide in their efforts to advance public policies that support healthier communities and prevent childhood obesity. The program places an emphasis on policies with the greatest potential for increasing sustainable opportunities for physical activity and healthy eating among children at highest risk for obesity, including African-American, Latino, American Indian and Alaska Native, Asian-American and Pacific Islander children living in lower-income communities. The foundation's primary goal is the reversal of the childhood obesity epidemic by 2015.
Obesity in China is a major health concern according to the WHO, with overall rates of obesity between 5% and 6% for the country, but greater than 20% in some cities where fast food is popular.
Obesity in Greece is a growing health concern with health officials stating that it is one of the leading causes of preventable deaths in Greece.
MyPlate is the current nutrition guide published by the United States Department of Agriculture's Center for Nutrition Policy and Promotion, and serves as a recommendation based on the Dietary Guidelines for Americans. It replaced the USDA's MyPyramid guide on June 2, 2011, ending 19 years of USDA food pyramid diagrams. MyPlate is displayed on food packaging and used in nutrition education in the United States. The graphic depicts a place setting with a plate and glass divided into five food groups that are recommended parts of a healthy diet. This dietary recommendation combines an organized amount of fruits, vegetables, grains, protein, and dairy. It is designed as a guideline for Americans to base their plate around in order to make educated food choices. ChooseMyPlate.gov shows individuals the variety of these five subgroups based on their activity levels and personal characteristics.
Sugar-sweetened beverages (SSB) are any beverage with added sugar. They have been described as "liquid candy". Consumption of sugar-sweetened beverages have been linked to weight gain and an increased risk of cardiovascular disease mortality. According to the CDC, consumption of sweetened beverages is also associated with unhealthy behaviors like smoking, not getting enough sleep and exercise, and eating fast food often and not enough fruits regularly.
Frank B. Hu is a Chinese American nutrition and diabetes researcher. He is Chair of the Department of Nutrition and the Fredrick J. Stare Professor of Nutrition and Epidemiology at the Harvard T.H. Chan School of Public Health, and Professor of Medicine at the Harvard Medical School.
Katherine Mayhew Flegal is an American epidemiologist and senior scientist at the Centers for Disease Control and Prevention's National Center for Health Statistics. She is one of the most highly cited scientists in the field of the epidemiology of obesity according to Thomson Reuters and has been called "one of the great epidemiologists" by former FDA Commissioner David A. Kessler.
Mary Story is Professor of Global Health and Community and Family Medicine, and director of Education and Training, Duke Global Health Institute at Duke University. Dr. Story is a leading scholar on child and adolescent nutrition and child obesity prevention.
Dariush Mozaffarian is a cardiologist, Jean Mayer Professor at the Friedman School of Nutrition Science and Policy at Tufts University, Professor of Medicine at Tufts School of Medicine, and an attending physician at Tufts Medical Center. His work aims to create the science and translation for a food system that is nutritious, equitable, and sustainable. Dr. Mozaffarian has authored more than 500 scientific publications on dietary priorities for obesity, diabetes, and cardiovascular diseases, and on evidence-based policy approaches and innovations to reduce diet-related diseases and improve health equity in the US and globally. Some of his areas of interest include healthy diet patterns, nutritional biomarkers, Food is Medicine interventions in healthcare, nutrition innovation and entrepreneurship, and food policy. He is one of the top cited researchers in medicine globally, he has served in numerous advisory roles, and his work has been featured in an array of media outlets.
Gladys Block is a nutrition researcher who worked at the National Cancer Institute.
Timothy David Spector is a British epidemiologist, medical doctor, and science writer, working on the relationship between nutrition, the gut microbiome, and health. He argues against low-fat diets and fad diets, and instead advocates for a Mediterranean-style diet that is heavily plant-based, high in fibre, limits ultra-processed foods, and includes a diversity of plants.
Catherine Alison Geissler, Lady Auld is a prominent British nutritionist and author and co-author of widely recognised reference textbooks on human nutrition.
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