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Description
were mainly involved in the conception of the article and in the selection of the studies

The metabolic effects of l carnitine Muscle Endurance: The l carnitine is crucial for enhancing exercise performance and developing muscle endurance, especially during high-intensity exercises such as high-intensity training or circuit workouts

D-carnitine inactive form that can cause carnitine deficiency by inhibiting the absorption of its other active forms
2019;317:C13249

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