Can L-Carnitine cause heartburn

Yes, L-Carnitine can cause heartburn in some individuals. This is primarily due to its potential to relax the lower esophageal sphincter, leading to acid reflux. Additionally, some people may experience gastrointestinal discomfort, including heartburn, as a side effect of supplementation. If you experience persistent heartburn after taking L-Carnitine, it's advisable to consult a healthcare professional.