The plant defence compound caffeine is widely consumed as a performance enhancer in a
sporting context, with potential benefits expected in both physiological and psychological …

In general, preparations of coffee, teas, and cocoa containing high levels of polyphenols, L-
theanine and other bioactive compounds selectively enhance mood and cognition effects of …

Cognitive and mood benefits of coffee are often attributed to caffeine. However, emerging
evidence indicates behavioural effects of non-caffeine components within coffee, suggesting …

Theanine, a major amino acid in green tea, exhibits a stress-reducing effect in mice and
humans. Matcha, which is essentially theanine-rich powdered green tea, is abundant in …

The stress-reducing effect of matcha, a high-quality fine-powdered green tea, has recently
been clarified by animal experiments and clinical trials. However, the effect of matcha added …

Tea polyphenols (TP) are one of the most functional and bioactive substances in tea. The
interactions between TP and intestinal microbiota suggest that probiotics intervention is a …

Matcha is thought to be beneficial for brain functions; however, only a few scientific studies
have shown the effects of Matcha tea powder on psychiatric behavior. Here, we evaluated …

L-theanine is commonly used to improve sleep quality through inhibitory neurotransmitters.
On the other hand, Mg2+, a natural NMDA antagonist and GABA agonist, has a critical role …

Background Previous observational studies have suggested diabetic patients should
synchronize their foods and nutrient intake with their biological rhythm; however, the optimal …

Background: Coffee and tea are major sources of caffeine and have often been used as the
vehicle in which caffeine has been delivered in laboratory research. Instant coffee has been …