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Now we know that one key to slower and healthier aging is a process called DNA methylation, and a principal player in the process is a molecule called trimethylglycine (TMG), also known as betaine.4 5 As a health supplement, TMG has been the subject of studies on aging-related pathologies linked to the liver and heart, as well as quality-of-life markers like physical strength and gastrointestinal health

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Front Biosci Landm 30(2):25551 Manivasagam T et al (2020) Role of oxidative stress and antioxidants in autism

Xie et al., 2016), leading to a chronic OS state (Schallreuter, 2014)