Pôsobí na: náladu
L-tyrozín je aminokyselina, ktorá sa používa na produkciu noradrenalínu a dopamínu. Suplementácia pôsobí antistresovo na akútny stres (ktorý zvykne vyčerpať noradrenalín) a môže chrániť pred poruchami pamäte spôsobenými stresom.
Užívanie
L-tyrozín sa zvykne užívať príležitostne v dávke 500-2000 mg, približne 30-60 minút pred akútnym stresom (tým zvykne byť cvičenie). Pozorovania na ľuďoch ukázali, že najlepší antistresový účinok majú dávky 100-150 mg/kg telesnej hmotnosti (9-13 g pre 90 kg človeka), podané 60 minút pred cvičením. Ak užitie vyššej dávky vedie k zažívacím problémom, môže sa dávka rozdeliť na dve dávky, ktoré sa užijú s odstupom cca 30 minút.
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