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There’s some science to suggest brain benefits: People who supplement with L-theanine may sleep more soundly, stressless, think better, and potentially stave off mental decline.
In addition to L-theanine and lemon balm, these drinks contain guayusa, which has antioxidant and anti-inflammatory properties. Guayusa is also the source of caffeine in this drink. Guayusa is ...
The bottom line: While L-theanine may have the potential to enhance your life and benefit your health in certain areas, “always discuss your individual potential risks and benefits of starting a ...
The name theanine usually refers to the enantiomer L-theanine, which is the form found in tea leaves from which it is extracted as a powder. [4] [6] The right-handed enantiomer, D-theanine, is less-studied. Theanine is sold as a dietary supplement and is considered to be safe at doses up to 250 milligrams (mg) by the US Food and Drug ...
The world's primary source of caffeine is the coffee "bean" (the seed of the coffee plant), from which coffee is brewed. Caffeine content in coffee varies widely depending on the type of coffee bean and the method of preparation used; [ 240 ] even beans within a given bush can show variations in concentration.
Alpha-GPC – L-alpha glycerylphosphorylcholine has been studied only in the context of cognitive performance alongside other substances such as caffeine. [34] Choline bitartrate – Choline bitartrate is a tartaric acid salt containing choline (41% choline by molecular weight). One meta-analysis found choline bitartrate to be ineffective at ...
A large-scale study involving over 400,000 older adults found that men who drank 2 cups of coffee a day lived 10% longer than their coffee-free cohorts. Among women, the figure was even higher ...
A relaxation drink is a non-alcoholic beverage containing calming ingredients normally found in nature. It is a functional beverage that serves to calm a person but unlike other calming beverages such as tea, relaxation drinks almost universally contain more than one active ingredient.