l-carnitine eating disorders Comparison of short-term and long-term effects of peroral intake: clinical implications of elevated TMAO levels in cardiovascular complications L-Carnitine | Linus Pauling Institute
Description
People with the inherited condition trimethylaminuria, who cannot efficiently oxidize TMA, are more prone to it

Weber et al

These usually resolve within 12 weeks

But according to the ODS, research has found only a possible modest reduction in body weight from taking carnitine

Effects of gut microbiota and metabolites on heart failure and its risk factors: A two-sample mendelian randomization study

Presented at the LDN AIIC Conference, June 2019 in Portland, OR
