Glenn Mackintosh

Glenn Mackintosh_Profile









Glenn Mackintosh is the Founder and Principal Psychologist at Weight Management Psychology. He is a member of the Australian Psychological Society, a fellow of the Obesity Prevention and Treatment Society, and the Queensland representative for the APS Psychology of Eating, Weight, and Body-image Interest Group. Before venturing into full time private practise, he was the Director of Psychology at the Wesley Lifeshape Clinic, and he also consults with Qld Bariatrics patients pre- and post- surgery.

Glenn’s research investigated psychological and social factors and weight management, and he has lectured in weight management psychology, health psychology, and sport and exercise psychology at the University of Queensland, Griffith University, and the Australian College of Applied Psychology.

Glenn has also developed the self-help resources Relaxation & Affirmation, The Walking Companion, and Weight Off Your Mind, designed for psychological education and transformation around key weight management issues, the Diet-Free Headphones and co-created the Weight Management Psychology – Emotional Freedom Techniques for Weight Management Online Program with Professor Peta Stapleton. He has also developed The Twelve Month Transformation, a group program helping people free themselves from yo-yo dieting and develop naturally healthy habits.

Glenn also features in the media regularly, having interviewed on weight related topics for Weight Watcher’s, Grazia, and Good Health Magazines, 4BC, 4BH, Casey Radio, and A Current Affair.

Glenn’s passion is in helping people effectively manage their eating, physical activity, weight, and body-image and training other professionals in applying psychological principals to help their clients who are grappling with weight management issues through his sold-out professional workshops, online courses for Personal Trainers through the Australian Fitness Network, and online courses for dietitians in conjunction with Dietitian Connection.


Dr Jayson Tatnell

Dr Jayson Tatnell is a health and general psychologist at Weight Management Psychology. He is a member of the Australian Psychological Society and has over 10 years’ experience in the field of health psychology. Since completing a Doctorate in Health Psychology in 2008, Jayson worked for Queensland Health in cancer care, palliative care, persistent pain, and community mental health. Since 2014, he has been in private practice on the Sunshine Coast.

Many people seek out Jayson’s expertise in order to help them adjust to, and manage, challenging circumstances regarding their health. He is especially passionate about helping people make positive health behaviour changes to improve their physical and mental well-being and, in particular, achieving increased success with weight management. To this end, Jayson has benefitted greatly from Glenn’s expert guidance, encouragement and inspiration.


Shauna Spencer

Shauna Spencer is a psychologist specialising in weight management. She completed her Bachelor of Science with Honours in Psychology at the University of Queensland in 2007. She also holds a Diploma in Fitness and is currently studying a Bachelor of Nutrition and Dietetics. She is incredibly passionate about helping people live happier, healthier lives.

Since graduating in 2007 Shauna has specialised in the psychology of weight management and has had a wealth of experience prior to joining the team at Weight Management Psychology. Shauna has assisted people pre and post bariatric surgery at the Royal Brisbane and Women’s hospital. She has worked as a weight management psychologist with Glenn at the Wesley Weight Management Clinic, where she was part of a multi-disciplinary team. She ran one-on-one appointments aimed at helping individuals to overcome psychological barriers that prevented them from losing and maintaining weight loss. She has also worked as a weight management psychologist at Adro Sarnelli’s (winner of season 1 Biggest Loser) The New Me Obesity Rehabilitation Centre in Melbourne where she ran group workshops and individualised consultations assisting people to develop healthy mindsets around food, eating and physical activity. She has owned and operated her own health coaching practice where she assisted a variety of people to make health related behavioural changes and improve their overall well-being. Further to this she has also worked with families on a research project called NOURISH with QUT that aimed to prevent childhood obesity by setting up healthy eating habits in young children.

Shauna’s Treatment Modalities include:

  • Cognitive Behavioural Therapy (CBT)
  • Motivational Interviewing (MI)
  • Acceptance and Commitment Therapy (ACT)
  • Mindfulness