Uploaded February 2026 | Updated September 2026, 2 weeks ago
In this conversation, I discuss how “normal” time-restricted eating (breakfast to dinner, 12-13 hours overnight) differs from late fasting, and why fasted training often backfires for active midlife women. I walk through the data showing no improvements in glucose tolerance, telomeres, or parasympathetic tone with late fasting, and explain what happens to luteinizing hormone pulses and cortisol when women train unfueled. I outline why a bit of protein before, and protein plus carbohydrate after, strength or HIIT leads to better adaptations, higher EPOC, more daytime energy, and better satiety. Women are already metabolically flexible; across the menstrual cycle we naturally shift fuel use. For postmenopause, consistent protein and smart calorie control outperform long fasts or chasing ketosis for body composition. I also touch on circadian rhythm and the hypothalamus - how regular daytime meals reduce perceived stress and support healthy hormone signaling.
Watch the FULL podcast here: youtube.com/watch?v=qzciJWljsbs
Want to go deeper? Start here:
Menopause 2.0
Your complete science-based guide to training through midlife and beyond
👉 drstacysims.com/menopause?utm_source=feb26wk4f&utm_medium=social&utm_campaign=youtube
Microlearning Courses
Focused courses on supplements, hormones, and training - each under 3 hours
👉 drstacysims.com/microlearning?utm_source=feb26wk4f&utm_medium=social&utm_campaign=youtube
Next Gen: Training Active Girls
For coaches, parents & teachers helping girls thrive through puberty and sport
👉 drstacysims.com/nextgen?utm_source=feb26wk4f&utm_medium=social&utm_campaign=youtube
Not sure where to start. Start here:
👉 drstacysims.com/product_guide?utm_source=feb26wk4f&utm_medium=social&utm_campaign=youtube
▶️ Watch Next:
Continue learning with these related videos:
The Truth About Women’s Training & Nutrition | Dr. Stacy Sims on Andrew Huberman Podcast
youtu.be/CYew_LtZt4I?si=DV3vpzKX7qcVuyWs
Is Mainstream Exercise Advice Sexist? Here’s the Truth! | Dr. Stacy Sims on Diary of a CEO
youtu.be/-4I0U9ApVEw?si=u1CsDLVaAG_SzMOi
Why Women Need a Different Approach to Nutrition & Training | Dr Stacy Sims on The Proof
youtu.be/4c7udsxd3c8?si=wG8wZTmE4s36xA9G
👩🔬 About Me:
I’m Dr. Stacy Sims, exercise physiologist, nutrition scientist, and author of ROAR and Next Level. My mission is simple: stop training women like small men. I help you understand and work with your physiology - for better performance, health, and longevity.
📩 Join my newsletter for updates, tips, and free resources
👉 drstacysims.com/generic_optin
Follow me for daily tips:
Instagram: @drstacysims
Facebook: @drstacysims
LinkedIn: Dr. Stacy Sims
🔔 Subscribe for new videos on women's health, training, and recovery
👍 Like, share, and drop a comment - I love hearing your questions
#DrStacySims #WomenAreNotSmallMen #WomensHealth #FemaleAthletes #ExerciseScience #Hormones #StrengthTraining #MenopauseFitness
In this conversation, I discuss how “normal” time-restricted eating (breakfast to dinner, 12-13 hours overnight) differs from late fasting, and why fasted training often backfires for active midlife women. I walk through the data showing no improvements in glucose tolerance, telomeres, or parasympathetic tone with late fasting, and explain what happens to luteinizing hormone pulses and cortisol when women train unfueled. I outline why a bit of protein before, and protein plus carbohydrate after, strength or HIIT leads to better adaptations, higher EPOC, more daytime energy, and better satiety. Women are already metabolically flexible; across the menstrual cycle we naturally shift fuel use. For postmenopause, consistent protein and smart calorie control outperform long fasts or chasing ketosis for body composition. I also touch on circadian rhythm and the hypothalamus - how regular daytime meals reduce perceived stress and support healthy hormone signaling.
Watch the FULL podcast here: youtube.com/watch?v=qzciJWljsbs
Want to go deeper? Start here:
Menopause 2.0
Your complete science-based guide to training through midlife and beyond
👉 drstacysims.com/menopause?utm_source=feb26wk4f&utm_medium=social&utm_campaign=youtube
Microlearning Courses
Focused courses on supplements, hormones, and training - each under 3 hours
👉 drstacysims.com/microlearning?utm_source=feb26wk4f&utm_medium=social&utm_campaign=youtube
Next Gen: Training Active Girls
For coaches, parents & teachers helping girls thrive through puberty and sport
👉 drstacysims.com/nextgen?utm_source=feb26wk4f&utm_medium=social&utm_campaign=youtube
Not sure where to start. Start here:
👉 drstacysims.com/product_guide?utm_source=feb26wk4f&utm_medium=social&utm_campaign=youtube
▶️ Watch Next:
Continue learning with these related videos:
The Truth About Women’s Training & Nutrition | Dr. Stacy Sims on Andrew Huberman Podcast
youtu.be/CYew_LtZt4I?si=DV3vpzKX7qcVuyWs
Is Mainstream Exercise Advice Sexist? Here’s the Truth! | Dr. Stacy Sims on Diary of a CEO
youtu.be/-4I0U9ApVEw?si=u1CsDLVaAG_SzMOi
Why Women Need a Different Approach to Nutrition & Training | Dr Stacy Sims on The Proof
youtu.be/4c7udsxd3c8?si=wG8wZTmE4s36xA9G
👩🔬 About Me:
I’m Dr. Stacy Sims, exercise physiologist, nutrition scientist, and author of ROAR and Next Level. My mission is simple: stop training women like small men. I help you understand and work with your physiology - for better performance, health, and longevity.
📩 Join my newsletter for updates, tips, and free resources
👉 drstacysims.com/generic_optin
Follow me for daily tips:
Instagram: @drstacysims
Facebook: @drstacysims
LinkedIn: Dr. Stacy Sims
🔔 Subscribe for new videos on women's health, training, and recovery
👍 Like, share, and drop a comment - I love hearing your questions
#DrStacySims #WomenAreNotSmallMen #WomensHealth #FemaleAthletes #ExerciseScience #Hormones #StrengthTraining #MenopauseFitness
