Sources of methyl donors include Betaine (also known as trimethylglycine) from Red Beets or Betaine from Blackstrap Molasses, Choline from lecithin, brewers yeast, wheat germ and other sources, SAMe, dimethylglycine (DMG), MSM (MethylSulfonylMethionine), Methylcobalamin (Methyl B12) and Folic acid.