THE SHORT ANSWER
This is the question the whole sport has left unanswered, and Thurlow — a nurse practitioner who's built her work around women's metabolic health — is one of the few experts who'll actually take it on. Her recurring theme is the protection of muscle, and it gets more urgent, not less, through perimenopause and menopause. She's careful with fasting for exactly this reason: past about 24 hours you start breaking down muscle, and she's not willing to run that risk in women who are already losing the hormonal support that defends lean mass and bone. She's also clear that hormonal depletion isn't only a midlife problem — a younger woman who's lost her cycle to under-fuelling is exposed to the same risks a menopausal woman faces: bone, heart, brain, cognition. For the female rider who's been handed training advice built entirely on male physiology, her message is simple — fuel enough, protect the muscle, and stop treating your hormones as an afterthought.
WHO IS CYNTHIA THURLOW?
Cynthia Thurlow is one of the leading public voices on intermittent fasting in the US — a Nurse Practitioner with two decades of clinical experience and a TEDx talk on fasting for women that has been viewed by millions. Her work matters for cycling because the masters audience asking 'why am I gaining weight despite training the same?' is mostly looking at meal-frequency and circadian-rhythm questions her framework is built around. She is also one of the few public voices who explicitly distinguishes how fasting protocols should differ for women, particularly perimenopausal women.
THURLOW ON MENOPAUSE & CYCLING
Thurlow’s key positions on training through menopause.
- Loss of menstrual cycle is a clinical warning sign, not a 'lean and fit' badge — female endurance athletes who over-train and over-fast are the most exposed group.
- Pair fasting with protein and resistance training — the combination prevents the muscle loss that derails long-term metabolic health, particularly in perimenopause and beyond.
IN THURLOW’S OWN WORDS
Verbatim from Cynthia Thurlow’s appearances on the podcast.
“If you're a younger woman let's say you're under the age of 35 and you're not getting a menstrual cycle because your hormone levels are just so depleted you're putting yourself at risk for the same things that menopausal women are at risk for bone issues heart health brain health cognition.”
HEAR IT ON THE PODCAST
Episodes where Cynthia Thurlow covers training through menopause and related ground.
FREQUENTLY ASKED
What does Cynthia Thurlow say about training through menopause?
This is the question the whole sport has left unanswered, and Thurlow — a nurse practitioner who's built her work around women's metabolic health — is one of the few experts who'll actually take it on. Her recurring theme is the protection of muscle, and it gets more urgent, not less, through perimenopause and menopause. She's careful with fasting for exactly this reason: past about 24 hours you start breaking down muscle, and she's not willing to run that risk in women who are already losing the hormonal support that defends lean mass and bone. She's also clear that hormonal depletion isn't only a midlife problem — a younger woman who's lost her cycle to under-fuelling is exposed to the same risks a menopausal woman faces: bone, heart, brain, cognition. For the female rider who's been handed training advice built entirely on male physiology, her message is simple — fuel enough, protect the muscle, and stop treating your hormones as an afterthought.
What is Thurlow's main point on menopause & cycling?
Loss of menstrual cycle is a clinical warning sign, not a 'lean and fit' badge — female endurance athletes who over-train and over-fast are the most exposed group.
Which Roadman Cycling Podcast episodes cover Cynthia Thurlow on menopause & cycling?
Thurlow discusses training through menopause in this episode: "What 99% Get Wrong About Weight Gain & How to Fix It | Cynthia Thurlow".
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