When you exercise, benefits of that exercise are seen in many different organs of the body, not just the muscles that were exercised. These metabolic benefits are the result of “messenger” molecules that are released into the blood stream and travel to other tissues where the benefits of exercise are realised. One such messenger molecule, or “myokine”, is understood to be the amino acid beta-aminoisobutyric acid. BAIBA is an amino acid that your body produces in response to exercise. After being released into the blood stream, it starts a thermogenic program in fat tissue, raising energy expenditure and reducing weight gain when tested in mice. When mouse or human white fat cells are exposed to BAIBA, some of them become fat-burning “beige” fat cells. Beige (or BRITE) fat cells contain the protein UCP-1 – also known as “thermogenin” because it burns triglycerides to produce heat.
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