This wonderful vitamin/amino acid like compound will help your body burn fat for energy.
It does this by bonding with long chain amino acids, forming Acylcarnitines which enable the Carnitine to enter the energy powerhouse that is the mitochondria. Once in the mitochondria, the Acylcarnitine can be broken down to form ATP which is used by the entire body for energy.
Therefore Carnitine not only increases your energy levels, but it also helps you directly burn fat!
Consume (on average) 2-4g of Carnitine per day to reap these benefits.
Llewellyn, W. (2009). Sport Supplement Reference Guide. Carnitine. FL: Molecular Nutrition LLC of Jupiter.