l carnitine medicine used Synergy (D) – Mark Hyman, MD L-Carnitine (500mg)
Description
While major regulatory bodies like the FDA and EFSA deem it safe for the general public, the IARC has classified it as "possibly carcinogenic to humans" (Group 2B)

Low incidences of seizures have been reported with oral doses in individuals with or without pre-existing seizure disorders.

Methods A literature search was conducted in the MEDLINE (via PubMed) and Web of Science databases from the inception up February 2020

Biochem Biophys Res Commun 231 : 488493 Liu Y, Rosenthal RE, Stark-Reed P, Fiskum G

Supplementing with NR increased plasma metabolite levels, indicating efficient delivery

The comprehensive screening and evaluation of carnitine changes in patients with depression is of great significance to studying the development of depression in depth