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Weightless

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What to expect

Brought to you by Penguin.

*With a foreword from New York Times bestselling author of THE NEW MENOPAUSE, Dr Mary Claire Haver*

Your playbook for optimising results on GLP-1 medications, such as Ozempic, Wegovy, Mounjaro and Zepbound, to reverse obesity and take charge of your health


GLP-1 medications have revolutionised how doctors treat obesity and changed the lives of the people who take them. With demand for these transformative drugs skyrocketing, people interested in trying GLP-1 therapy for weight loss must navigate an uncharted landscape where many doctors are playing catch-up on the latest science. Many patients walk out their doctor’s offices with a prescription but not the essential guidance they need to get the best results – or sustain them.

In Weightless, Dr. Rocio Salas-Whalen, an obesity medicine specialist, covers this crucial information and the tried-and-true strategies that have helped her patients achieve health goals that once seemed impossible. She helps you understand that taking your medication is only one step of the journey. In fact, these drugs work best when you pair them with proper monitoring and lifestyle changes. Drawing from her clinical experience and stories from her patients, she explains how to:

  • Ask the right questions at your first appointment and select the best GLP-1 medication for your needs
  • Understand how it will change your experience with food and hunger
  • Adopt the two other key 'prescriptions' – eating more protein and strength-training – to get the most from your treatment and prevent muscle loss
  • Monitor your progress, avoid side effects and know when you need to adjust your dose
  • Navigate the impacts of GLP-1 therapy on your relationships with others and yourself

Comprehensive and research-backed, Weightless will give you the science, clarity, and confidence to take the first step toward a healthier, more empowered you.

© Dr Salas-Whalen 2026 (P) Penguin Audio 2026

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