The Immunity Plan

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What to expect

Brought to you by Penguin.

The immune system is our most valuable resource, our first and most important line of defence, protecting us around the clock. It also determines how quickly we age, regulates our body weight and metabolism, and impacts our brain health. Yet modern life, with toxins, allergens, poor diet and imbalanced gut bacteria, places huge strain on it leading to a rise in immune issues and autoimmune conditions. But research shows that by removing these stressors and improving immunity through nutrition and lifestyle, we can transform long-term health.
In The Immunity Plan, leading nutritionist Kate Llewellyn-Waters unpacks the most robust science behind our immune system, from the role of hormones and the microbiome to the ways immunity differs between men and women. With practical advice, lifestyle strategies, and immunity-supporting recipes, this essential guide shows you how to strengthen your immune health, reduce inflammation, and protect against autoimmune disease.
This is the essential, accessible handbook for anyone who wants to understand their immune system and harness its power for a healthier life.

© Kate Llewellyn-Waters 2026 (P) Penguin Audio 2026

Critics Review

A clear, evidence-based guide that brings together nutrition and immunity in a practical and accessible way. This book translates complex science into advice that many people will find reassuring, empowering and genuinely useful for supporting long term health.
Dominique Ludwig, Nutritionist MSc
The immunity plan will help so many people who suffer with autoimmune issues. The tools from this book will really help suffers understand their bodies and the importance of nutrition and lifestyle.
Jess Impiazzi
Kate is a fantastic nutritionist and here she summarises years of academic achievement with vast experience of practice, enabling the reader to understand complex processes happening within the body, but also to empower the reader to use nutrition correctly for the prevention of illness and disease and biohack their way into healthy longevity
Dr Sarah Jenkins, Award Winning Women’s Health Doctor
The Immunity Plan combines robust nutritional science with practical, real-world advice on how food can not only help reset the way we live but enhance our lives. Simple, accessible and easy to digest chapters (no pun intended!) make it a valuable guide for anyone wanting to support their health and wellbeing through everyday food choices
Theo Michaels, Chef, Author and Presenter
An outstanding, informative, accessible book that covers every aspect of immunity and the importance of supporting our immune system
Briony May Williams

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