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Front Pharmacol 14:1082817 Li L, Li T, Liang X, Zhu L, Fang Y, Dong L, Zheng Y, Xu X, Li M, Cai T, Zhao F, Xin M, Shao M, Guan Y, Liu M, Li F, Zhang C, Wang Q, Sun W, Zheng Y (2025) A decrease in Flavonifractor plautii and its product, phytosphingosine, predisposes individuals with phlegm-dampness constitution to metabolic disorders

Some small studies suggest L-theanine may improve some ADHD symptoms, especially concentration and focus

The one controlled human trial found it well tolerated over a short duration in surgical patients

It can lead to decreased self esteem and confidence

Frequently Asked Questions What is CJC-1295 and Ipamorelin blend studied for in research