Drs. David Raubenheimer and Stephen Simpson change our understanding of diet, obesity, and the secrets to longevity in this gripping tale of evolutionary biology and nutritional science, based upon years of groundbreaking research.

Their colorful scientific journey takes readers across the globe, from the foothills of Cape Town, to the deserts of Arizona, to a state-of-the-art research center in Sydney. Readers will encounter locusts, mice and even gorillas along the way as the scientists test their hypotheses on various members of the animal kingdom.

This is one of the most important books about health and nutrition, and it’s a beautifully written, gripping adventure of these dedicated scientists as they reveal the keys to how and why we eat what we do.