Intermittent fasting
For weight loss
Most of the experts we follow recommend it.
Intermittent fasting can help with weight and insulin sensitivity, especially when tailored to your needs.
Who is behind it
Voices including a licensed acupuncturist and clinician-educator, a molecular biology PhD and a performance scientist with a psychology PhD.
How strong the research is
Mostly expert experience so far, with published research still catching up.
In their words
“For people trying to resolve intractable health problems... you should strongly consider experimenting with more extended and accentuated fasting, feeding cycles.”
a nutritional sciences PhD
Women need to fast differently during follicular, luteal, perimenopause, and menopause phases to honor their unique biorhythms and avoid negative effects.
Fasting helps the gut microbiome recover and improves insulin sensitivity.
Intermittent fasting triggers other helpful behaviors leading to positive physiologic adaptation such as increased HRV.
Consuming protein prior to a workout signals the body to build muscle instead of breaking it down, mitigating the catabolic stress response in women.
Intermittent fasting can improve insulin sensitivity and thus help reverse PCOS.
Skipping breakfast gives the body a break and is beneficial.
Weight loss data from Cochrane 2026 shows little to no difference versus standard dietary advice.
With care
Some of the minds attach conditions. These are worth reading before you begin.
Intermittent fasting is mentioned as one of many diet models to help achieve weight loss.
Fasting is a stress factor and must be used wisely and elegantly to avoid negative hormonal effects.
Talk it through
Entrain shows what the experts teach, so you can make better decisions with your own clinician. It does not diagnose or prescribe. If something is worrying you, start there.
How this reading was made
Every line here comes from a doctor, scientist or coach speaking publicly, and links to the moment they said it. Entrain listens for where independent experts arrive at the same place on their own, and shows where they part ways. Mostly expert experience so far, with published research still catching up.
None of the statements here come with a declared commercial interest. Last refreshed 23 September 2026.
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- GingerThe experts agree
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