Trimethylglycine (TMG) is an amino acid used to help metabolize homocysteine. High levels of homocysteine can negatively impact microvascular circulation.
"The speaker mentions using trimethylglycine (TMG) to help people metabolize homocysteine, as high homocysteine levels can negatively affect microvascular circulation. He suggests it as a way to cater to that portion of the circulatory system."