In a small paired-cohort evaluation, 10 participants completed validated measures of anxiety, perceived stress, and everyday cognitive failures before and after 60 days of daily supplementation. All three measures improved at the group level, although the uncontrolled design and reliance on self-reported outcomes limit conclusions about causation.
A new study explores whether combining L-theanine and caffeine may help support selective attention and promote a state of calm alertness.
5-HTP is a direct metabolic precursor to serotonin and has been studied for mood and sleep applications. Here is what practitioners should know about the evidence, dosing, safety and important serotonergic drug interactions.
L-theanine is a non-protein amino acid found naturally in the leaves of Camellia sinensis, the plant used to produce green, black, white and oolong tea. Structurally similar to glutamate, L-theanine has attracted clinical interest because of its potential to promote relaxation, improve aspects of attention and cognitive performance, and supportRead
In clinical practice, practitioners often see patients with stress-related issues due to lifestyle, environment, and other common stressors. This frequently overlaps with occasional sleep issues, trouble focusing, and heightened reactivity. While many interventions exist, L-theanine—an amino acid naturally found in green tea—has demonstrated a unique ability to promote relaxation withoutRead
Summary: In today’s fast-paced world, dealing with stressors and consequent sleep disturbances is becoming increasingly common. While melatonin is widely recognized for its role in regulating sleep, three amino acids that are emerging as effective supplements for promoting relaxation and improving sleep quality are gamma-aminobutyric acid (GABA), L-theanine, and 5-hydroxytryptophanRead
Patients who experience occasional stress from lifestyle factors often present with occasional episodes of mental overstimulation, difficulty relaxing, and trouble staying asleep. As interest in non-pharmacologic options continues to grow, nutraceuticals such as GABA and L-theanine are frequently considered for their ability to promote relaxation and help manage stress. WhileRead
