l carnitine prije treninga 4Endurance L-karnitin tartrat: Tvoja pomoć pri mršavljenju Self Omninutrition L-Carnitine – Energija,
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doi: 10.1038/s41430-018-0348-y

Also, in a review by Verhaar et al

2019 Apr 11;8(4):488

L-carnitine is an amino-acid derivative that plays a critical role in energy production

Mejora la funcin del diafragma y la respiracin abdominal