l-carnitine sports drink Now Foods Liquid, Tropical Punch, 1000 mg 3 fatty acids may help athletic performance improvement when combined with carbohydrates. Carnitin 1000 | Red Orange

I would also try the above natural alternatives first

Eric Favre Laboratories offers you a tasty liquid L-Carnitine, enriched with Green Tea and ready to use that will help you achieve your weight loss goal!CONSEIL D'UTILISATION - L-Carnitine Pro Zero Eric Fave c'est LA boisson pratique boire : prendre 20ml le matin ou avant l'entranement grce au bouchon doseur inclus

Higher capacity, bigger cell, more weight

The importance of the dendritic pool of mitochondria has been confirmed by the fact that in hippocampal neurons, the depletion of mitochondria in dendrites diminishes the number of synapses and spines [31]