S-Adenosyl Methionine, commonly known as SAM-e, is a naturally occurring compound found in all living cells. It is synthesized in the body from the amino acid methionine and adenosine triphosphate (ATP). SAM-e plays a critical role in numerous biochemical reactions, primarily acting as a methyl donor. Methylation is a fundamental process involved in the synthesis, activation, and metabolism of various molecules, including neurotransmitters, hormones, proteins, and DNA. SAM-e is involved in over 100 metabolic pathways in the human body. As a dietary supplement, SAM-e is manufactured synthetically. It has been studied for its potential roles in mood support, joint health, and liver function (NIH ODS, MedlinePlus). Its bioavailability is generally considered low, and it is usually taken on an empty stomach to enhance absorption.
Deep dive
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Known interactions
Category rule: glp1 × supplement
Note
GLP-1 medications slow stomach emptying, changing how/when oral supplements absorb; rapid weight loss raises the importance of protein and micronutrients.
Time oral supplements when nausea is lowest; prioritize protein and micronutrients; discuss with your provider.
Category rule: supplement × medication
Note
Some supplements change how the body processes medications (absorption, liver enzymes, or additive effects).
Specific pairs are checked against a licensed drug database and shown with their own severity. Always confirm with your provider or pharmacist.
Frequently asked
Sources referenced
["NIH Office of Dietary Supplements (ODS)","MedlinePlus (National Library of Medicine)","PubChem (National Center for Biotechnology Information)","Mayo Clinic","Examine.com","DrugBank","Cochrane Library"]
Stackwise compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.
Related compounds
Others in the supplement category or studied for the same goals.