Rhonda Patrick· PhD
It takes a few weeks to a month to see the clear effects. Then, if you stop doing it, you stop exercising, stop intermittent fasting, it doesn't take long for things to go back the way they were.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
It takes a few weeks to a month to see the clear effects. Then, if you stop doing it, you stop exercising, stop intermittent fasting, it doesn't take long for things to go back the way they were.
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So, we found the same thing with intermittent fasting. It enhances the parasympathetic nervous system. That will also. And that's sort of the vagus nerve, which is this big nerve coming down here. It innervates the heart, slows down heart rate. It can increase blood flow, dilation of blood vessels. And it can also enhance gut motility.
So within a month, my blood pressure went from like 100 over 60, and resting heart rate of like low 50s to blood pressure like 135 over 85. And my resting heart rate's up like to 70, you know.
Time-restricted eating produces fat loss independent of total calories.
A 72-hour fast measurably improves autophagy markers in healthy adults.
One-meal-a-day (OMAD) eating patterns increase all-cause mortality in long-running cohort data.
Eating the largest meal before 3pm improves 24-hour glucose vs. an evening-heavy schedule, calorie-matched.