topicTheanine Sleep Quality Randomized Trial
claimIt was once most popular in Japan; however, in recent years, its use in the food industry has increased significantly [].
evidence level3
citationSławińska Paulina (2026)
sourceMatcha as a Source of Bioactive Compounds: A Review of Health-Promoting Properties and Potential Applications
topicTheanine Sleep Quality Randomized Trial
claimNumerous recipes featuring matcha can be found online, and many cafés now offer various flavored versions of this beverage.
evidence level3
citationSławińska Paulina (2026)
sourceMatcha as a Source of Bioactive Compounds: A Review of Health-Promoting Properties and Potential Applications
topicTheanine Sleep Quality Randomized Trial
claimTherefore, the aim of this review is to present and critically evaluate available evidence on the composition of matcha and its documented physiological effects, highlighting both its therapeutic potential and existing research gaps.
evidence level3
citationSławińska Paulina (2026)
sourceMatcha as a Source of Bioactive Compounds: A Review of Health-Promoting Properties and Potential Applications
topicTheanine Sleep Quality Randomized Trial
claim1 2 3 3 4 5 5 6 7 8 Table 1 9 Camellia sinensis Tea is one of the most popular beverages in the world.
evidence level3
citationSławińska Paulina (2026)
sourceMatcha as a Source of Bioactive Compounds: A Review of Health-Promoting Properties and Potential Applications
topicTheanine Sleep Quality Randomized Trial
claimFailure to meet the recommended 7-9 hours of restful sleep per night is known to increase the risk of several health conditions, reason why regular and adequate sleep should be seen as a priority instead of an unnecessary commodity easily traded as required by the commitments of our busy lives.
evidence level4
citationConti F (2026)
sourceDietary Protocols to Promote and Improve Restful Sleep: A Narrative Review.
topicTheanine Sleep Quality Randomized Trial
claimWhile both the quantity and the quality of sleep can be largely improved with relatively straightforward practices dictated by good sleep hygiene, emerging research suggests that dietary and supplementation protocols focused on certain foods, nutrients, and biochemical compounds with sleep-promoting properties can act as subsidiary sleep aids in complementing these behavioral changes.
evidence level4
citationConti F (2026)
sourceDietary Protocols to Promote and Improve Restful Sleep: A Narrative Review.
topicTheanine Sleep Quality Randomized Trial
claimThe scope of this narrative review is to summarize the available evidence on the potential benefits of selected nutraceuticals in the context of circadian rhythm and sleep disturbances, namely melatonin, magnesium, omega-3 fatty acids, tart cherry juice, kiwifruit, apigenin, valerian root, L-theanine, glycine, ashwagandha, myoinositol, Rhodiola rosea, and phosphatidylserine.
evidence level4
citationConti F (2026)
sourceDietary Protocols to Promote and Improve Restful Sleep: A Narrative Review.
topicTheanine Sleep Quality Randomized Trial
claimHumans spend approximately one third of their life asleep but, as counterintuitive as it may sound, sleep is far from being a quiet state of inactivity.
evidence level4
citationConti F (2026)
sourceDietary Protocols to Promote and Improve Restful Sleep: A Narrative Review.