can acetyl-l-carnitine cause kidney stones Pure Powder Acetyl L-Carnitine vs L-Carnitine: 4
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It can also cause poor muscle metabolism and other negative health effects

Sarcopenia: Preliminary evidence suggests ALCAR may preserve muscle mass and function in the elderly by improving mitochondrial efficiency [5][68]

Arduini A, Denisova N, Virmani A, Avrova N, Federici G, Arrigoni-Martelli E

Although L-Carnitine may help with weight loss in some people, it works best when combined with exercise and a balanced diet

(25(9)):1710-1717 doi:10.1016/j.drudis.2020.06.026
