#318: GLP-1 Medications, Strength Training & Muscle Loss: What You Need to Know w/ Dr. Christle Guevarra

In this episode, I sit down with Dr. Christle Guevarra—physician, strength athlete, and co-author of Bodybuilding Anatomy—to unpack the truth about GLP-1 medications like semaglutide & tirzepatide, how they impact muscle mass and metabolism, and what coaches and clients over 40 need to know. We talk about bone density, strength training differences between men and women, how to coach someone on GLP-1s responsibly, and why mindset—not just macros—makes or breaks long-term success. This one’s full of real talk, practical advice, and a lot of laughs.HOW TO FIND DR GUEVARRA:Instagram: https://www.instagram.com/dr.christle/FIT40 LINKS✅ Want to get your nutrition on track?Book a free call with me to get an individualized nutrition assessment by clicking this link: https://calendly.com/coachfitzz/assessment?month=2025-06​✅ Do you thrive on monthly challenges and group support?Check out FIT40 Group Coaching by clicking this link: https://coach.everfit.io/package/BG758131​✅ Need professional level 1:1 accountability to help you finally reach your goals?Check out FIT40 Coaching by clicking this link: https://fit40coaching.com/AFFILIATE LINKS:Try Tonal for 30 Days Risk Free: https://tonal.sjv.io/FIT40Get 10% Off The Genius Protein Shot: https://www.geniusshot.com/?ref=BRYAN_FIT40&transaction_id=10214dd14c839e450a4423af7b1f8eCONNECT WITH ME ONLINEFacebook: https://www.facebook.com/bryan.fitzsimmonsInstagram: ⁠⁠⁠⁠https://www.instagram.com/coach_fitzz/⁠⁠⁠⁠Tiktok: ⁠⁠⁠⁠⁠https://www.tiktok.com/@coach_fitzz?is_from_webapp=1&sender_device=pcYoutube: https://www.youtube.com/@bryan_fit40 This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit bryanfitzsimmon.substack.com