Extra-concentrated blend, our best value in blended DMG. Feed less, get more, and save money, too! Research Uncovers Role Of DMG DMG is the popular abbreviation for the nutrient N,N-Dimethylglycine, which is found in low levels in many foods. DMG is also produced within the cells of the body from choline and betaine, and so is classified as an "intermediary metabolite." DMG plays a crucial role in the respiratory cycle of the cells, transporting oxygen and serving as a potent methyl donor. A larger nutrient complex containing DMG was the subject of numerous studies in the Soviet Union during the 1960s. This work led to its adoption as part of the dietary regimen for Soviet athletes. In the mid-1970s, the American biochemist Dr. Roger Kendall identified DMG as the key ingredient of the Soviet formula. Since then, research at several American universities has demonstrated DMG's usefulness in a variety of species, including the horse.