Rhonda Patrick on Melatonin
12 episodes · 18 references · 2015–2025
- Patrick takes 3mg melatonin nightly for night terrors and views it as a critical hormone regulating 500+ genes, antioxidant activity, and immune function - Extensively discusses benefits for sleep, cancer survival, insulin regulation, egg protection, and brain antioxidant defense - Cautions about melatonin receptor gene variants linked to type 2 diabetes risk and warns against combining melatonin with alcohol
Consumption
- Patrick takes 3mg of melatonin in the evening as part of her regular supplement routine - Uses a higher dose specifically because it helps manage her night terrors - No specific brand or form (capsule, sublingual, etc.) mentioned in her discussions
Benefits
- Regulates 500 genes (2.5% of the human genome), increases antioxidant gene expression in the cortex, and regulates REM sleep - Meta-analysis of 19 RCTs shows melatonin decreases sleep onset latency, increases total sleep time, and improves sleep quality - High-dose melatonin with radiation increased one-year breast cancer survival from 36% to 65%; also protects ovarian eggs and regulates immune function
Best Practices
- The body naturally produces melatonin about 3 hours before bedtime; finish your last meal before that window to avoid insulin-melatonin conflict - Avoid eating late at night since melatonin shuts down insulin production in pancreatic beta cells, making late meals metabolically disruptive - Minimize bright blue light exposure at night to avoid suppressing natural melatonin production
Cautions
- A melatonin receptor 1B gene variant is a significant risk factor for type 2 diabetes due to hypersensitive receptor activation - Melatonin inhibits insulin secretion from pancreatic beta cells, which can affect blood glucose levels — relevant for metabolically sensitive individuals - Patrick advises against combining melatonin with alcohol, warning it increases drowsiness and may not be safe
“Melatonin has been shown to bind to receptors on the pancreas and this signals to the pancreas to stop producing insulin.”
Late-night eating and melatonin may impair insulin response
“They're having too much bright blue light exposure inhibiting their melatonin at night so they're not they're sort of becoming these night owls.”
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“There have been studies done with supplemental melatonin in breast cancer patients where they've given them really high doses. In conjunction with other traditional therapies like radiation, it increases the one-year survival rate from 36% to about 65%.”
Sleep, Daylight Anchoring, and Effects on Memory & Obesity with Dan Pardi
“Melatonin's a hormone that regulates 500 different genes. That's two and a half percent of the human genome.”
Ray Cronise on Cold Thermogenesis, Intermittent Fasting, Weight Loss & Healthspan
