Can Acetyl L Carnitine Help Clear Brain Fog and Fatigue in Long COVID and ME CFS? RTHM Did You Know? Some people report a fishy smell after supplementing with L carnitine. This happens because certain gut bacteria convert carnitine to trimethylamine, a malodorous compound found in rotting fish. Fish Odor Carnitine TikTok What you eat can influence how you smell and even how attractive you seem to others. Foods like garlic, onions, and cruciferous vegetables (broccoli, cabbage) contain sulfur compounds that affect body