ISBN 978-0-6484408-7-1

The User’s Manual For Your Body


Your body is the most sophisticated thing in the Universe, and you should view it as your most treasured possession. But you did not arrive in this world with a user’s manual that tells you how your body works, particularly in relation to the food you put into it, and what goes wrong when you do things differently to how you have evolved.

Two thirds of western society are either overweight or suffering from obesity. This a potent source of unhappiness, extending in many to anxiety, stress and clinical depression. But there’s also a significantly increased risk of serious diseases such as cancer, heart attacks, strokes, Alzheimer’s disease, arthritis and diabetes. If you contract any of these there’s a very good chance you will die prematurely.

Statistics show that what we are currently doing is clearly not working. And that’s because people simply don’t know or have been given the wrong information. The User’s Manual For Your Body provides in simple terms everything you need to know.

About the Authors



Cancer Surgeon, Media Entrepreneur, Wellbeing Guru

Andrew was born and raised in the UK. He trained firstly as a dentist then as a doctor and finally as a surgeon, almost exclusively in London, but also completing a year in both San Francisco and Sydney. Part of his specialist training included a dedicated period of research resulting in a Masters of Surgery and a thesis entitled ‘Immune Mechanisms in Cancer’. He now runs a very successful surgical practice in Brisbane, and has spent the whole of his professional career looking after patients with gut-related problems such as bowel cancer that often require major surgery,

In addition to his surgical practice, Andrew is a media entrepreneur and is Director of Online Medical – a web design and development company specialising in websites for medical specialists, hospitals and allied health professionals. He has also established an online education forum for doctors, medical students and nurses – the Australian Institute of Medical Education. He is passionate about teaching and has previously held academic appointments at Bond and Griffith universities in Queensland as well as Jiangnan and Shandong universities in China.

Andrew has a continued to pursue his career as a scientific researcher in his role as Director of Fasting Science, a forum established to conduct research into the role of obesity in diseases such as cancer.

Through this experience, he has a profound understanding of nutrition and how the body handles it. He is deeply concerned that the public have been spectacularly misled by so-called experts with regard to the causes and management of obesity.

In response, he has developed Nysteia and the Nysteia Formula. with his good friend and business partner John Aronis. The science is complex but the solution is easy.


About the Authors


MBBus (Acc) GradDipCA MComm MA (PAIS) CA CTA

John was born in Sydney, and was raised in Brisbane with some of his childhood spent in Goondiwindi, Murgon, and Yeppoon. He now calls Brisbane home (or, more correctly, Pine Rivers Shire!)

He has a Bachelor’s degree in business, a Master’s degree in Commerce, and a Master of Arts in Political and International Studies. He is a Chartered Accountant and Chartered Tax Advisor, and is Principal of his accountancy business based in Brisbane.

John has experienced a personal battle with obesity for many years, and like many individuals was left frustrated and totally confused by the lack of authoritative information on how best to deal with it. His personal story can be found in his bio video.

After studying the topic extensively and putting into practice the Nysteia Formula he has now reached his biological optimum weight (BOW). And importantly, he will never again become overweight and progress to obesity.

With his good friend and business partner, Dr Andrew Renaut, he has developed Nysteia and put all of this experience and knowledge into the one place, so that others may derive the same benefit.

When he is not working, John likes to maintain his physical and mental wellbeing by continuing with the Nysteia Formula on a daily basis.

John is a trained classical guitarist, but can damn well play the blues on a Fender Stratocaster, and shares this guitar passion with Andrew. He also enjoys flying planes, walking in rainforests, and practicing the Japanese martial art of Aikido in which he holds the rank of 3rd Dan Black Belt. As often as he can, he returns to Osaka Japan, which he considers paradise on Earth.