Petronella Ravenshear has spent decades helping thousands of clients resolve long-standing digestive, skin, and weight issues. And now she's here to share the revelations from her in-depth studies of functional nutrition and help you put the spring back in your step.
HBD The Human Being Diet: A Blueprint for Feasting and Fasting Your Way to Feeling, Looking, and Being Your Best is a three-month program that will reestablish your body's long-term balance. Using her expertise to demystify complex research and dense subject matter, Ravenshear puts health first and allows weight loss to follow as a welcome side effect of lowered inflammation and rebalanced hormones. And by embracing her liberating approach, you'll be able to interact with food in a positive way while enjoying the freedom of renewed strength and vigour.
With HBD, you'll discover:
- How making smart choices can outweigh genetic tendencies and protect your ongoing health
- A straightforward set of rules and phases that reveal which foods best suit your unique biochemistry
- The underlying science behind adjusting your eating habits to reset your rhythm and restore your zest for life
- Why 74% of deaths worldwide are caused by avoidable diseases and how you can course correct to improve your odds
- Ways in which common approaches to weight loss get it wrong, helpful recipes and meal plans, and much, much more!
This updated and revised second edition of HBD The Human Being Diet is your life-changing ticket to practical nutrition. If you like upbeat information, clear boundaries, and relatable storytelling, then you'll love Petronella's inspirational philosophy on food.
Ravenshear, Petronella: - "Nutritionist to the UK's movie star, fashion and celebrity set, Ravenshear combined twenty years of clinical experience and scientific research into her first book, The Human Being Diet (HBD). Initially published in 2018, the second edition was fully updated in 2026.HBD is a distillation of Ravenshear's years of work and experience as a registered nutritional therapist in London. She earned a glittering reputation as one of the UK's best known and loved practitioners - famed for her scientific approach to alleviating clients' chronic weight, digestive, metabolic, and skin problems. She paired practical evidence-based advice with psycho-neuro-immunology, which is the science of the mind/body connection. The combination has been wildly successful, as demonstrated by the myriad testimonials from her readers and clients.In 2023 she relocated to Palm Beach Florida, where she continues to write. Ravenshear has been featured on TV and podcasts in the US, and has been written about in the UK press, including The Times and Sunday Times, Daily Mail, Tatler, Vogue, and the Telegraph. She was a columnist for the Sunday Telegraph Magazine's Day on a Plate, and has written for numerous magazines and newspapers, including British Vogue. Due to popular demand The HBD Club was launched in 2025. It's an online membership club for HBD fans and followers providing a safe, supportive and motivational space which is hosted on the specialist community app, Circle.Other books1. The HBD Reset Cookbook, Thorsons HarperCollins, 20262. The HBD Journal, Thorsons HarperCollins, 20263. The HBD Cookbook, Thorsons HarperCollins, 2023QualificationsInstitute for Optimum Nutrition, diploma with honours 2004Metabolic Balance(TM) diploma 2008The Institute for Functional Medicine AFMCP Graduate London 2012Natura Foundation Clinical Psychoneuroimmunology (cPNI) diploma 2013Professional MembershipsBANT The British Association for Nutrition and Lifestyle Medicine (UK)IFM Institute for Functional Medicine (USA) Royal Society of Medicine (UK)Guild of Health Writers (UK)Awards2025 Fellowship awarded by the British Association for Nutrition and Lifestyle Medicine (BANT)"
