A physician-led method built on real science — no injections, no drugs, no restriction. The ABS-X approach, brought together across the book, the app, and the podcast.
The ABS-X method isn't a crash diet. It's a balance of mind, diet, and movement — designed so healthy weight loss becomes effortless once your habits take over.
The most crucial part of the triangle. Reprogramme your habits over a focused three-week challenge, until discipline runs on subconscious autopilot.
Chapter 6 · The MindThe ABS-X eating pattern — Intelligent Breakfast, Clever Lunch, Light Supper — built around the foods you love, so you sustain it for life.
Chapter 3 · Food GuideWalk on an empty stomach, burn fat reserves directly, and keep food and movement as independent goals — never eating back what you burn.
Chapter 1 · Simple StepsDr Asif Mushtaq distils over two decades of NHS consultant experience into a clear, evidence-based system anyone can follow — the foundation the app and podcast are built on.
A practical, no-nonsense guide to losing weight and getting fit the smarter way. Three simple steps: delay your first meal, walk on an empty stomach, and wait. A free diet plan is included.
Verified reviews from readers of Dr Asif Mushtaq's books on Amazon.
"A thoughtful and sustainable approach to weight loss, focusing on long-term success rather than quick fixes. It encourages readers to make gradual changes that can be maintained over a lifetime, covering nutrition, exercise and mindset. An excellent resource for those looking to make intelligent, lasting lifestyle changes."
"This book is written in a most helpful, comprehensive way, addressing all the questions that often pop up in your mind when you plan on losing weight. It addresses the constraints and challenges in a practical way. Definitely would recommend to any of my friends who are struggling to be fit."
"A comprehensive, well-researched guide to weight loss, drawing on the author's personal journey as well as insights from their professional experience as a doctor. The author combines evidence-based advice with relatable anecdotes, making the information accessible and motivating."
"A great book to learn the science of fitness while not compromising other domains of life which need attention. With each new page I read, my understanding has increased. Kudos to the author, and to all who are getting fitter!"
"I am a medical colleague of Dr Mushtaq, we have been working together in the emergency department for the past six years. I found this book very inspirational, being able to see the journey of real-life example of weight loss and the improvements in overall health that can be attained. I was able to share such knowledge with my own father who found it useful. Highly recommend."
"Amazing book along with graphs and charts, and a different concept in weight loss which I find very interesting and helpful. It emphasises the importance of discipline, promoting gradual, long-term change rather than quick fixes."
"The best book to remain smarter for ever. Written by an experienced consultant physician, it offers a thoughtful and sustainable approach to weight loss, focusing on long-term success rather than quick fixes. Highly recommended."
"Best ever weight loss book. Written in a most helpful, comprehensive way, addressing all the questions that often pop up in your mind when you plan on losing weight. Definitely would recommend to any of my friends who are struggling to be fit."
"A doctor's guide for real weight loss for real life. A comprehensive, well-researched guide drawing on the author's personal journey as well as their professional experience as an emergency consultant. Accessible and motivating."
"A practical and informative guide to achieving sustainable weight loss through a combination of healthy eating, exercise and lifestyle changes. Clear, actionable advice, and it emphasises the psychological aspects of weight loss too. A well-rounded resource."
"Transformative exercise, mind and diet knowledge. This book is full of comprehensive knowledge about exercise, mind and diet. It completely transformed my fitness journey. If you want to read a book that provides logical, sustainable strategy to lose weight and stay in shape, this is the one."
"Fantastic book! It's a fantastic book for anyone confused about where to start their fitness journey. The author has explained everything so simply and gives you a step-by-step guide to beginning and continuing the journey."
"Mind, science and fitness. After reading this book, I personally feel how important it is to keep oneself fit for positive and healthy eating attitude. Very light and content — hopefully I'll stick to this habit for life."
The Dr Asif Diet app turns the book into a daily companion: personalised calorie targets, a guided challenge, and an AI coach trained on Dr Mushtaq's method.
Habit → Weight Loss → Fitness, one step at a time
Food & exercise as independent goals
Guidance in Dr Mushtaq's voice
Track weight against your NHS ideal
Dr Mushtaq explores the real science and psychology behind lasting weight loss — practical, honest conversations to keep you motivated on your journey.
Lose Weight Smarter for Life — the whole method in brief
What readers are saying, and why it matters
The science of losing weight and keeping it off
The ABS-X method and the science of the X-Point
The psychology of lasting, sustainable change
Building strength and staying fit for life
From the app walkthrough to Dr Mushtaq's guidance — short, clear videos to help you get started and stay on track.
Read the book, download the app, and let Dr Mushtaq's method guide you — smarter, sustainable, and built for life.
Questions about the app, the book, or your subscription? Reach out and our team will get back to you.
The quickest way to reach us is by email — we aim to respond within two working days.
Dr Asif Mushtaq is a Senior NHS Physician and weight loss expert with over two decades of clinical experience. He holds a postgraduate degree in weight management and is completing a master's in the field. He is the author of Lose Weight Smarter for Life and One-Pack to Six-Pack, creator of the ABS-X method, and host of the Empowering You podcast.