L-Carnitine is not an amino acid in the strict sense (it is not used as a neurotransmitter or in protein synthesis), however L-Carnitine bears many resemblances to amino acids and is usually grouped under this heading. L-Carnitine (the "L" refers to its chemical polarity) is used by the body to transport long chain fatty acids to the mitochondria in your cells, where they are burned for energy. Since this fat burning is such a major source of muscular energy, deficiencies in L-Carnitine are manifested as low energy levels and muscular weakness. L-Carnitine deficiencies can also appear as mental confusion or cloudiness, angina (heart pain) and weight gain.
If you aren't burning fat, you must be storing it. This obviously leads to a variety of health problems, namely fatty build-ups. L-Carnitine supplementation can help prevent fatty build-ups in the heart and liver (especially likely if you are a regular consumer of alcoholic beverages).
