BHMT (Betaine-Homocysteine S-Methyltransferase): BHMT is an enzyme that reflects the body’s ability to metabolize homocysteine, a process important for cardiovascular and neurological health. BHMT catalyzes the conversion of homocysteine to methionine using betaine as a methyl donor. Dysregulation of BHMT can lead to elevated homocysteine levels, which are associated with cardiovascular disease and other health concerns.