carnitine

例句：

1. 1. Carnitine is anessential nutrient for athletes and helpsthem maintain energy levels during intense exercise.
   肉碱是运动员必需的营养素，有助于他们在高强度运动中保持能量水平。
2. 2. Thebody needs carnitine to convert fats into energy, which is why it's often added to sports supplements.
   身体需要肉碱将脂肪转化为能量，这就是为什么它常被添加到运动补充剂中。
3. 3. Recent studies have shown that supplementing with carnitine can improve athleticperformance and reduce recovery time after workouts.
   最近的研究表明，补充肉碱可以提高运动表现并减少锻炼后的恢复时间。