TMG (Trimethylglycine)

Discover 2 whole food sources of TMG (Trimethylglycine), certified organic growers, and the latest longevity research on this bioactive compound.

Trimethylglycine (TMG) is a naturally occurring amino acid derivative found in foods such as beets, spinach, and seafood that serves as a methyl donor in cellular methylation reactions.

Mechanism of action

TMG functions as a methyl donor by transferring its three methyl groups to support various methylation reactions in the body. These reactions are essential for DNA synthesis, repair, neurotransmitter production, and regulation of the amino acid homocysteine. By regenerating methionine from homocysteine, TMG helps maintain adequate levels of S-adenosylmethionine (SAM), a universal methyl donor that supports numerous cellular processes implicated in aging and longevity.

Evidence overview

Limited direct evidence specifically evaluates TMG's longevity effects in humans. Most research on TMG focuses on its role in lowering plasma homocysteine, an independent cardiovascular risk factor, with some RCT evidence showing modest reductions in homocysteine levels in healthy adults. Animal studies and in vitro research suggest that optimized methylation pathways may support cellular stress resistance and metabolic health, but translation to human longevity outcomes remains unstudied. Food sources of TMG (beets, spinach) correlate with reduced disease risk in observational studies, though isolating TMG's specific contribution is not possible given the complex nutrient profiles of these foods. No clinical trials have yet assessed TMG supplementation's impact on human lifespan, healthspan, or age-related disease incidence. Note: Published evidence specific to this compound in the Verisource pipeline is not yet available; this summary is based on general mechanistic and nutritional literature.

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