Carnitine is a natural substance found in food and made from the essential amino acids, lysine and methionine. Carnitine can be absorbed quickly in the small intestines. Carnitine can also be made in the liver and the kidneys and where vitamin C, niacin, vitamin B6 and the mineral iron, are required for that process. Only the L-carnitine form should be used as a supplement. 95 percent in the diet and 90 percent in the body.
Triglycerides also circulate in the blood.
For example, olive oil looks, tastes and acts differently in cooking and in our bodies than, say, the fat found in ground meat. The fatty acid may be of different lengths. It is the length of the fatty acid that determines the melting point of the fat, and implications for food processing and absorption. Carnitine works mostly in the muscle cells of the body. Heart and skeletal muscles depend upon fatty acids as a major source of energy.