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Book Abstract

Oxford University Press · 2025

Food and Nutrition: What Everyone Needs to Know

Dr. P.K. Newby's Food and Nutrition: What Everyone Needs to Know  offers science-based answers to 158 stand-alone questions addressing what we eat and why it matters, farm to fork and far beyond, sharing facts about health, disease, and sustainability while dispelling misinformation about ultra-processed foods, plant-based meat, food miles, GMOs, and more.  The book explores the past, present, and future of food, tracing how sapiens forged relationships with the natural and built environment and each other, shaping how we cook, eat, and produce food.  Part I introduces challenges like hunger, food waste, obesity, and chronic diseases as well as climate change, resource depletion, and environmental degradation, much due to megafactory farming in agriculture.  Part II tracks dietary evolution through agricultural and scientific and industrial revolutions, from paleolithic plant-based diets in the Stone Age to meat-centric Western diets in today’s Information Age.  Part III covers essential nutrition—water (hydration), micronutrients (vitamins and minerals), macronutrients (carbohydrates, fats, proteins), and alcohol—while combating disinformation on fluoridation, vitamin supplements, bottled water, gluten-free diets, high-fructose corn syrup, sugar, coconut oil, and protein.  Parts IV and V examine plant-based foods (coffee, vegetables, whole grains, legumes) and animal products (meat, dairy, eggs, fish), including nutrition, health impacts, and environmental costs, notably climate change, antibiotic resistance, and animal welfare.  Part VI provides evidence-based guidance on disease prevention, weight loss, longevity, and food waste, while highlighting ecotechno solutions for creating healthy, sustainable food systems, agroecology to alternative proteins to artificial intelligence, urging that the time for revolution is now.

Three-dimensional cover of Food & Nutrition: What Everyone Needs to Know by P.K. Newby, second edition.

KEY WORDS

Nutrition science, social science  •  Health, disease, longevity  •  Food technology, public health  •  Evidence-based diet guidance  •  Food systems, sustainability  •  Future of food, social evolution

For Students, Teachers, and Savvy Eaters

Explore evidence-based answers on all things food and nutrition, nourishing your own individual health and wellbeing while considering how daily choices together create a healthy, sustainable food future for all.  The second edition takes on Big Food and agribusiness; debunks nutrition myths; uncovers food truths; and confronts the ultimate ultra-processed food while outlining ecotechno solutions from a global, expert lens.  This multidisciplinary book is a reader-friendly, Q&A format accessible to all readers and ideally suited for academic curriculum and courses across a range of food and nutrition related disciplines like nutrition, public health, environmental science  food science, food technology, gastronomy, culinary and lifestyle medicine, and dietetics.

How to Buy

Bookshop.org is an excellent way to support your favorite bookstore if you can't get to it in person.  Other purchase options follow, with direct links to the book.  Please reach out for bulk orders.

Hands sharing a colorful meal of vegetables, grains, fruit, and drinks around a dining table.

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Dr. P.K. Newby

Founder and CEO Dr. P.K. Newby is a Harvard- and Columbia-trained nutrition scientist and author of Food & Nutrition: What Everyone Needs to Know. She writes Food Truth, Unfiltered, a free newsletter on Substack.

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