In this episode, George Sutphin discusses the results of his DEXA scan and VO2 max test. Matt and George discuss how his readouts have changed over time, his experience with Ozempic, and whether his body composition tracks his work deadlines. George, a former aerospace engineer turned geroscientist, is now an Assistant Professor at the University of Arizona, focusing on genetic determinants of longevity and ageing interventions.

Key Points:

George Sutphin shared his journey of significant body fat reduction and muscle maintenance through DEXA scans, VO2 max tests, and the use of GLP-1 agonists, while highlighting the impacts of stress and targeted training. 

• DEXA and VO2 Max Tests: The podcast features George Sutphin undergoing DEXA scans and VO2 max tests to assess changes in his body composition and cardiovascular fitness.
• Significant Body Fat Reduction: George managed to reduce his body fat by 10% in a year, dropping from 30% to 20%, which placed him in the 20th percentile for his age and gender.
• Lean Mass Maintenance: Despite losing 15 pounds overall, George successfully maintained and even increased his muscle mass by incorporating resistance training and a high-protein diet.
• Impact of GLP-1 Agonists: George experimented with semaglutide (Ozempic) and tirzepatide while focusing on high protein intake and resistance training to preserve muscle mass during weight loss.
• Stress and Visceral Fat: The discussion highlighted the impact of stress on visceral fat, with George noting that his stress-induced lifestyle changes might have influenced his visceral adipose tissue levels.
• VO2 Max Results: George’s VO2 max test placed him in the 75th percentile for his age, with a peak heart rate lower than expected due to a minor equipment issue during the test.