Apr 13, 2026
Have you ever
stepped on a scale and questioned whether the numbers truly reflect
what is happening inside your body? In this episode, Dr.
Gillian Lockitch speaks with nutrition
expert Cheryl McColgan to unpack the confusion around body
composition data, wearable devices, and the science behind tracking
your health as you age. Together, they explore how to interpret
trends rather than obsess over absolute numbers, and how lifestyle
habits like sleep, stress management, and nutrition influence the
data we see. This conversation empowers listeners to use technology
wisely while focusing on the foundational habits that support
vibrant, healthy aging.
Cheryl McColgan is an author,
coach, and the founder of Heal Nourish Grow, a wellness platform
focused on nutrition, metabolic health, and sustainable lifestyle
practices. With over 25 years of experience in psychology,
addiction studies, fitness, yoga, and nutrition, Cheryl brings a
multidisciplinary approach to health optimization. She is also the
host of the Heal Nourish Grow podcast and has authored multiple
books on keto nutrition and fat loss. At age 52, she became a
competitive bodybuilder, demonstrating her commitment to strength,
longevity, and aging powerfully.
Episode Timeline:
00:00 – Welcome and introduction
00:30 – A personal story of unexplained weight gain
Dr. Gillian shares her experience with atrial fibrillation, weight gain, and confusion over body composition data
06:35 – Cheryl’s journey into health, nutrition, and bodybuilding
From early exposure to fitness to becoming a competitor in her 50s
10:48 – Can we trust wearable and scale data?
Why body composition devices vary and how to approach their accuracy
12:27 – The problem with body fat readings
Why scales may underestimate fat and how algorithms affect results
16:08 – Hydration, inflammation, and measurement variability
How fluid shifts, illness, and exercise impact bioimpedance readings
18:46 – Daily vs weekly tracking
Why trends over time matter more than isolated measurements
21:38 – How wearables measure stress, sleep, and recovery
Understanding HRV, skin signals, and algorithm-driven insights
24:16 – Are we becoming obsessed with health data?
Balancing measurement with mindset and wellbeing
29:04 – The most important habits for healthy aging
Sleep, stress management, and aligning exercise with life demands
31:32 – Rethinking productivity and rest
The importance of giving yourself permission to recover
33:18 – Keto, metabolic health, and personalized nutrition
Cheryl’s journey from vegetarian to keto and evolving dietary flexibility
36:58 – Final reflections and practical takeaways
Using tools wisely while focusing on foundational health behaviors
Call to Action:
Find "Growing Older Living Younger: The Science of Aging Gracefully and the Art of Retiring Comfortably" at www.gillianlockitch.com (N.America only)
Subscribe to Growing Older Living Younger on your favorite podcast platform and leave a 5 star review to help others discover the show.
Connect with Dr. Gillian Lockitch at https://www.askdrgill.com/ or email: askdrgill@gmail.com to book a one-on-one call.
Learn more about Cheryl's work at https://healnourishgrow.com
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