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L-theanine may have antioxidant benefits, ... You shouldn't take L-theanine supplements if: You are pregnant or breastfeeding. You're allergic to green tea. You take sedatives, antidepressants ...
Theanine. Theanine / ˈθiːəniːn /, commonly known as L-theanine and sometimes L-gamma-glutamylethylamide or N5-ethyl-L-glutamine, is an amino acid analogue of the proteinogenic amino acids L -glutamate and L -glutamine and is found primarily in particular plant and fungal species. [3][4] It was discovered as a constituent of green tea in ...
Caffeine (data page) Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class and is the most commonly consumed psychoactive substance globally. [ 9 ][ 10 ] It is mainly used for its eugeroic (wakefulness promoter), ergogenic (physical performance enhancing), or nootropic (cognition improving) properties. [ 11 ][ 12 ...
L-theanine supplements could interact with some anti-anxiety, blood-pressure, and sleep meds. Side effects include headaches, dizziness, nausea, and jitteriness.
Ilex guayusa (/ ˈ aɪ l ɛ k s ˈ ɡ w aɪ juː s ə / or / ˈ aɪ l ɛ k s ˈ w aɪ juː s ə /) is a species of tree of the holly genus, native to the Amazon Rainforest.One of four known caffeinated holly trees, the leaves of the guayusa tree are harvested fresh and brewed like a tea for their stimulative effects. [1]
Arginine is the amino acid with the formula (H 2 N) (HN)CN (H) (CH 2) 3 CH (NH 2)CO 2 H. The molecule features a guanidino group appended to a standard amino acid framework. At physiological pH, the carboxylic acid is deprotonated (−CO 2−) and both the amino and guanidino groups are protonated, resulting in a cation.
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