Acetyl L Carnitine Capsules for Brain Health & Athletic Performance Body odor can be impacted by diet. Foods that cause body odor include garlic, onion, asparagus, red meat, and alcoholic beverages. #bodyodor #smellgood #dermatologist 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. How Much L Carnitine Per Day: Expert Guide The Science of Good Health