Nina Teicholz
Nina Teicholz is an American investigative science journalist and author focused on nutrition science and policy. She earned degrees from Yale and Stanford universities, studying biology and majoring in American Studies, followed by a master's from Oxford University and a Ph.D. in nutrition from the University of Reading in 2024, with research centered on evidence-based nutrition policy.
Teicholz gained prominence with her 2014 New York Times bestseller, The Big Fat Surprise , which examines the historical development of dietary guidelines and argues that saturated fats from animal foods such as butter, meat, and cheese have been unjustly demonized based on flawed and selective evidence, contributing to increased consumption of refined carbohydrates and vegetable oils. The book has been recognized as a top title of the year by outlets including The Wall Street Journal , The Economist , and Forbes , and its findings have been corroborated by subsequent scholarly reviews questioning the harms of saturated fats. Teicholz's analysis highlights how institutional biases and methodological weaknesses in key studies, such as those by Ancel Keys, influenced policy despite contradictory data from randomized controlled trials showing no clear link between saturated fat intake and heart disease.
In 2015, Teicholz founded The Nutrition Coalition, a nonprofit organization dedicated to promoting rigorous, transparent science in the formulation of U.S. Dietary Guidelines to address chronic conditions like obesity and type 2 diabetes. As executive director, she has advocated for reforms, leading to three National Academies of Sciences, Engineering, and Medicine reports recommending greater evidentiary standards and independence from industry influences in guideline processes. Her efforts underscore persistent discrepancies between official recommendations and emerging empirical evidence, including meta-analyses indicating that low-carbohydrate, higher-fat diets may yield better health outcomes than low-fat approaches. Teicholz contributes to peer-reviewed journals such as BMJ and Nutrients and maintains a Substack newsletter, Unsettled Science , examining uncertainties in nutritional orthodoxy.
Teicholz studied biology at Yale University before earning a B.A. in American Studies from Stanford University .
She subsequently obtained a master's degree from Oxford University.
In 2024, Teicholz received a Ph.D. in nutrition from the University of Reading , awarded by published works including her book The Big Fat Surprise and peer-reviewed papers, with an emphasis on evidence-based dietary policy. Her doctoral thesis, "The importance of evidence-based nutrition recommendations for ...", examines the need for rigorous, data-driven approaches to formulating nutritional guidelines, reflecting her academic training in applying systematic evidence review to public health policy.
This interdisciplinary foundation—spanning biology, social sciences, and nutrition policy—equipped Teicholz with analytical tools for critiquing established paradigms in dietary science , prioritizing empirical scrutiny over consensus-driven narratives.
Teicholz maintained a vegetarian diet for approximately 25 years, largely avoiding red meat and whole-fat dairy products in adherence to mainstream nutritional advice that emphasized low-fat, plant-based eating to prevent heart disease. This personal regimen aligned with the dietary guidelines promoted since the 1970s, which attributed cardiovascular risks primarily to saturated fats from animal sources, prompting her to eschew butter, steak, and similar foods. Her shift began around 2005 during an investigative project into the scientific basis of these recommendations, which evolved into nine years of research culminating in her 2014 book The Big Fat Surprise .
