Rhonda Patrick on Tryptophan
6 episodes · 6 references · 2016–2022
- Patrick discusses tryptophan as a dietary precursor to serotonin, melatonin, and NAD, emphasizing its role in mood regulation and sleep - Patrick highlights a competitive transport issue where branched-chain amino acids can reduce tryptophan uptake into the brain - No evidence of personal consumption or specific dosing guidance discussed
Benefits
- Tryptophan converts to serotonin in the brain, regulating mood, cognition, and impulse control - Serves as a dietary precursor for NAD synthesis, found in salmon, spinach, and nuts - Converts to serotonin and then melatonin, supporting sleep-wake cycle regulation including in breast milk
Cautions
- Branched-chain amino acids use the same brain transport system as tryptophan and out-compete it for uptake - This competition may reduce serotonin synthesis when BCAA intake is high - Suggests dietary tryptophan availability in the brain depends on amino acid balance, not just total intake
“Tryptophan is an essential amino acid we get from our diet. It is transported into the brain, where it gets converted into serotonin, an important neurotransmitter that regulates mood, cognition, and impulse control.”
Intestinal Permeability: the Bacterial link to Aging, Brain Barrier Dysfunction & Metabolic Disorder
“NAD can be synthesized in the body from a variety of dietary sources including the amino acid tryptophan, which is in tons of healthy foods like salmon, spinach, and nuts.”
NAD+ in Aging: Role of Nicotinamide Riboside and Nicotinamide Mononucleotide
“Tryptophan from dietary protein gets converted into serotonin and that's converted in melatonin.”
Dr. Satchin Panda on Time-Restricted Feeding and Its Effects on Obesity, Muscle Mass & Heart Health
“Nighttime breast milk contains higher levels of somnogenic amino acids like tryptophan to help the infant regulate its own sleep-wake cycle.”
The Biology of Breast Milk
“Eating food that contains the amino acid tryptophan gets converted into serotonin in the gut and ultimately into melatonin.”
Dr. Satchin Panda on Circadian Insights into Exercise Timing, Melatonin Biology, and Peak Cognition
