Why do most diets fail? Why does one person eat a certain meal and gain weight, while another eating the same meal loses pounds? Why, despite all the advice about what to eat, are we all still getting fatter? The answers are much more surprising - and fascinating - than we've been led to believe. The key to health and weight loss lies not in the latest fad diet, nor even in the simple mantra of 'eat less, exercise more', but in the microbes already inside us.

Since the discovery of DNA, scientists have believed that genes are fixed entities that cannot be changed by environment - we inherit them, pass them on to our children and take them with us when we die. Professor Tim Spector reveals how the latest genetic research and his own pioneering studies on epigenetics are rewriting everything we thought we knew about genes, identity and evolution. 

In industrialised nations, our sedentary lifestyles have contributed to skyrocketing rates of obesity and diseases like diabetes. A key remedy, we are told, is exercise - voluntary physical activity for the sake of health. However, most of us struggle to stay fit, and our attitudes to exercise are plagued by misconceptions, finger-pointing and anxiety. But, as Daniel Lieberman shows in Exercised, the first book of its kind by a leading scientific expert, we never evolved to exercise.

Strengthen your immunity for good. In this groundbreaking audiobook, expert immunologist Dr Jenna Macciochi unravels the new science around immunity and decodes exactly what it takes to be well in the modern day. Offering simple, clear and educated advice, debunking popular myths along the way, Immunity explores the secrets of people who never seem to get ill, why autoimmune disease is more prevalent than ever and how germs are actually good for us.

In the hard-hitting, groundbreaking tradition of his NY Times best seller Fat Chance, which revealed the dangers of sugar, Dr Robert Lustig persuasively presents a stark exposé of how our addiction to processed foods (aided and abetted by the food industry, big ag, big pharma, institutional medicine and the government) is behind the lethal increase in major non-communicable diseases, including diabetes, heart disease, fatty liver disease, cancer and dementia. 

The latest book from the author of the Sunday Times number one best seller Feel Better in Five. It's more important than ever before that we get in shape, stay healthy and live well - Dr Chatterjee is back to show you how. Weight loss isn't a race. It isn't one size fits all. Drawing on 20 years of experience as a GP, Dr Rangan Chatterjee has created a conscious, long-lasting approach to weight loss that goes far beyond fad diets and helps to find the best solutions that work for you.

Random House presents the audiobook edition of The Circadian Code, by Dr Satchidananda Panda. Change your daily routine, transform your health. Circadian rhythms are biological processes or clocks that exist in each one of our cells. Programmed to turn genes on or off at different times of the day or night, they influence every aspect of our health from weight and energy levels through to resistance to disease and infection, and how well we sleep.

In this groundbreaking book, Dr. Mosley takes us on a revelatory journey through the gut, showing how junk food and overuse of antibiotics have wiped out many good gut bacteria, leading to a modern plague of allergies, food intolerances and obesity. Drawing from the latest cutting-edge research, Dr. Mosley provides scientifically proven ways to control your cravings, boost your mood and lose weight by encouraging a more diverse microbiome and increasing the good bacteria that keep you healthy.  

For decades, the diet wars have pitted advocates for the low-carb, high-fat paleo diet against advocates of the exclusively plant-based vegan diet and dozens of other diets, leaving most of us bewildered and confused. For those of us on the sidelines, trying to figure out which approach is best has been nearly impossible - both extreme diets have unique benefits and drawbacks. But how can it be, we've asked desperately, that our only options are bacon and butter three times a day or endless kale salads? There must be a better way!

A combination of Professor Felice Jacka's love of food and her own experience of depression and anxiety as a young woman led her to question whether what we put in our mouths every day affects more than our waistline. Felice set out on a journey of discovery to change the status quo and uncover the truth through rigorous science. Beginning her PhD in 2005, she examined the association between women's diets and their mental health, focusing on depression and anxiety. She soon discovered - you feel how you eat.

In this ground-breaking book, instead of promising a gimmicky single-fix solution to the challenge of healthy eating, Hugh extracts the knowledge, advice and healthy habits, from cutting edge research into the obesity crisis, to produce seven simple strategies that will transform your diet and your health. Starting with the blissfully simple message that we all need to "Go whole", he leads us away from the industrial junk and processed foods that are doing so many of us so much harm and returns us to the real foods that nurture us and keep us well. 

The Human Superorganism makes a sweeping, paradigm-shifting argument. It demolishes two fundamental beliefs that have blinkered all medical thinking until very recently: 1) humans are better off as pure organisms free of foreign microbes; and 2) the human genome is the key to future medical advances. The microorganisms that we have sought to eliminate have been there for centuries, supporting our ancestors.

Everyone knows how hard it can be to maintain a healthy diet. But what if some of the decisions we make about what to eat are beyond our control? Is it possible that food is addictive, like drugs or alcohol? And to what extent does the food industry know, or care, about these vulnerabilities? In Hooked, Pulitzer Prize-winning investigative reporter Michael Moss sets out to answer these questions and to find the true peril in our food. 

Over the past 20 years, Evolutionary Biologist Herman Pontzer has conducted ground-breaking studies across a range of settings, including pioneering fieldwork with Hadza hunter-gatherers in northern Tanzania. This book draws on his eye-opening research to show how, contrary to received wisdom, exercise does not increase our metabolism. Instead, we burn calories within a very narrow range: nearly 3,000 calories per day, no matter our activity level.

In WTF Should I Eat? - Dr Hyman looks at every food group and explains what we've gotten wrong, revealing which foods nurture our health and which pose a threat. He also explains the crucial role food plays in functional medicine and how food systems and policies affect our environmental and personal health.