MGL, or methylglyoxal, is a naturally occurring compound found in many plants and foods. It has been studied for its potential health benefits, particularly as an antibacterial agent. There are several synonyms for MGL, including 2-oxo-propanal, pyruvaldehyde, and 2-oxo-acetaldehyde. These terms refer to the same chemical compound, but may be used in different contexts or scientific disciplines. MGL is also sometimes referred to as "active manuka honey," as it is found in high concentrations in the nectar of manuka flowers and is responsible for the antibacterial properties of this type of honey.