About: http://webisa.webdatacommons.org/347081722

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	SAM biosynthesis relies on B vitamins including folate and B12 for the recruitment and transfer of methyl groups, but other nutrients, including choline and betaine, also contribute to the methyl pool.
http://www.w3.org/ns/prov#wasQuotedFrom	clinicaltrials.gov