When it comes to deep recovery, hormone balance, and managing cravings, two amino acids stand out: Tryptophan and Glycine.
Clinically studied for their impact on neurotransmitter function, metabolic health, and sleep regulation, these essential building blocks are foundational to your body’s ability to reset, repair, and restore.
Why Tryptophan Matters
L-Tryptophan is an essential amino acid your body cannot produce on its own. It plays a critical role in the synthesis of serotonin—the “feel-good” neurotransmitter—and melatonin, which regulates the sleep-wake cycle. Research shows that tryptophan supplementation improves sleep latency and quality, while also supporting mood balance and reducing nervous tension [1].
Tryptophan has also been linked to appetite regulation and blood sugar control, due to its role in serotonin-mediated satiety signaling. Stable serotonin levels are associated with reduced sugar cravings and improved food satisfaction, making tryptophan a vital compound for managing nighttime snacking and promoting metabolic calm.
The Role of Glycine in Sleep and Recovery
Glycine is a conditionally essential amino acid that has powerful calming and restorative effects. It works by enhancing GABAergic activity—the brain’s primary inhibitory neurotransmitter—helping to lower core body temperature and initiate deep, slow-wave sleep [2]. Multiple studies show that 3g of glycine taken before bed can significantly improve sleep quality, cognitive performance, and next-day energy levels [3].
Beyond its neurological benefits, glycine supports collagen synthesis, muscle repair, and cellular regeneration, making it a crucial nutrient for both beauty and recovery. It also contributes to blood sugar stability by modulating glucose uptake and improving insulin sensitivity—ideal for those seeking to prevent energy crashes or post-meal fatigue.
Together, tryptophan and glycine form a synergistic foundation for restorative sleep, appetite control, and metabolic balance. That’s why they’re central to IMBIBE’s Recover Rest—a 5-in-1 Chocolate Magnesium Complex designed to nourish your body with clinical precision while you sleep.
Science meets Indulgence. Recovery meets Results.
References:
Silber BY, Schmitt JA. Effects of tryptophan loading on human cognition, mood, and sleep. Neurosci Biobehav Rev. 2010.
Yamadera W et al. Glycine ingestion improves subjective sleep quality in humans. Sleep Biol Rhythms. 2007.
Inagawa K et al. Glycine improves quality of sleep in patients with insomnia. Front Neurol. 2012.
