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Grapefruit
Eat 1 grapefruit or drink 6 to 8 ounces of grapefruit juice in the morning or late morning to extend the duration of endogenous cortisol by inhibiting its breakdown. He personally started consuming 1 pink grapefruit late morning before his first meal.
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“If you eat a grapefruit or you drink a, I don't know, six to eight ounces of grapefruit juice, it's going to have a meaningful impact on how long the cortisol that's already in your bloodstream lasts. So if you're interested in boosting your morning cortisol, simply eat a grapefruit in the morning.”
huberman · How to Control Your Cortisol & Overcome Burnout · Aug 4, 2025 · 1:04:33 · open ↗
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