Dimethylglycine (also known as DMG) is a derivative of the amino acid glycine. It is found naturally in plant and animal cells and in certain foods such as beans, cereal grains, and liver.
Dimethylglycine acts as a building block for many important substances in the body, including amino acids, hormones and neuro-transmitters. It also appears to play an important role in neurological functions and in the immune system.
Some people think that people on the autism spectrum have insufficient dimethylglycine in their bodies and that this may cause or worsen the symptoms of autism.
They also think believe that by taking supplements of dimethylglycine they can reduce some of those symptoms.