Fed Up.jpg
Fed Up.jpg

Fed Up by Daniel E. Lieberman

from $13.99
Hardcover:

A brilliant, no-nonsense look at two questions we never evolved to ask but now must consider several times a day: what should we eat, and why?

Daniel E. Lieberman—bestselling author of The Story of the Human Body and Exercised, and founding chair of the Department of Human Evolutionary Biology at Harvard University—cuts through all the confusing and contradictory advice on diet and wellness to argue that there can be no simple, definitive answer. Drawing from evolutionary biology, physiology, anthropology, anatomy, medical science, and history, Lieberman examines, with brio and wit, the history and health effects of food from before the invention of cooking up to today’s industrially produced diets. He shows how we evolved to eat almost anything, and by evaluating and trying many of these diets (raw food, Paleo, Mediterranean, Blue Zone, intermittent fasting, Atkins, DASH), he helps you understand why none is flawless though some are better than others.

Lieberman explores the costs and benefits of cheap, energy-rich, tempting, and often unhealthy ultra-processed foods; the tangled roots of weight gain; how diet influences obesity, heart disease, and cancer; and the claims of benefits offered by high- and low-fat diets, meal replacements, intermittent fasting, carnivorism, vegetarianism, and veganism—while also showing how over centuries most cultures evolved ingenious ways to grow and cook healthy, delicious food.

This fascinating and entertaining science-based book on nutrition, digestion, and health will teach you how to be well fed instead of fed up with dietary hucksterism.

A brilliant, no-nonsense look at two questions we never evolved to ask but now must consider several times a day: what should we eat, and why?

Daniel E. Lieberman—bestselling author of The Story of the Human Body and Exercised, and founding chair of the Department of Human Evolutionary Biology at Harvard University—cuts through all the confusing and contradictory advice on diet and wellness to argue that there can be no simple, definitive answer. Drawing from evolutionary biology, physiology, anthropology, anatomy, medical science, and history, Lieberman examines, with brio and wit, the history and health effects of food from before the invention of cooking up to today’s industrially produced diets. He shows how we evolved to eat almost anything, and by evaluating and trying many of these diets (raw food, Paleo, Mediterranean, Blue Zone, intermittent fasting, Atkins, DASH), he helps you understand why none is flawless though some are better than others.

Lieberman explores the costs and benefits of cheap, energy-rich, tempting, and often unhealthy ultra-processed foods; the tangled roots of weight gain; how diet influences obesity, heart disease, and cancer; and the claims of benefits offered by high- and low-fat diets, meal replacements, intermittent fasting, carnivorism, vegetarianism, and veganism—while also showing how over centuries most cultures evolved ingenious ways to grow and cook healthy, delicious food.

This fascinating and entertaining science-based book on nutrition, digestion, and health will teach you how to be well fed instead of fed up with dietary hucksterism.

  • Publisher: Knopf

    Title: Fed Up: What Evolution Reveals About Food, Diet, Health, and Eating Well

    Author: Daniel E. Lieberman

    On Sale Date: August 11, 2026

    ISBN 13: 978-0-593-53799-2

    ISBN 10: 0-593-53799-8

    Format: Hardcover

    Retail Price: $35.00

    BISAC: Health & Fitness / Diet & Nutrition

    Page Count: 416

    Dimensions: 6-1/8 in W | 9-1/4 in H

    Weight: 1.45 lb

  • Daniel E. Lieberman is a paleoanthropologist at Harvard University, where he holds the Edwin M. Lerner II Professorship in Biological Sciences and formerly chaired the Department of Human Evolutionary Biology. His research on how the human body evolved to walk, run, and eat has reshaped popular thinking about health and fitness, and he is the bestselling author of Exercised and The Story of the Human Body. Fed Up is his fourth book.

  • Critics and fellow bestselling authors are calling it wise, witty, and evidence-based:

    • “Wise, witty, and full of unexpected insights.” —Bill Bryson

    • “A wise, accessible, and evidence-based framework for eating well.” —Michael Moss

    • “Wise and sensible while also being fun to read.” —Robert M. Sapolsky

    • “Thoughtful, fact-filled, and frequently humorous.” —Publishers Weekly (starred review)

This book is for you if

  • You've tried Paleo, keto, or intermittent fasting and want to know what's actually backed by evidence.

  • You're curious how our hunter-gatherer ancestors ate — and what that does and doesn't mean for you today.

  • You want a science-based, myth-busting guide to nutrition rather than another rulebook.

  • You're navigating conflicting health advice about ultra-processed food, weight, and chronic disease.

  • You appreciate a rigorous but genuinely funny writer explaining complicated biology.

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