Understanding Urine Smells: Causes and Solutions Amazon.com: SIRENLABS L Carnitine Elite Burn Liquid Keto Fat Burner and Metabolism Activator Fat Loss Support Keto Friendly Weight Loss Increase Energy Stimulant Free Strawberry Blast 3000mg (32 Servings) : L Carnitine 3000 Liquid 3000 mg Carnitine Supplement Zero Calorie Zero Sugar Keto Friendly for Men and Women Great Tasting 31 Servings (Patriot Pop, 16 fl. oz Walmart.com Do you or someone you love smell like fish? It could be Fish Odor Syndrome! #fishodorsyndrome #fishy #fishysmell #fishodor Urine normally has a slight smell, but some unusual and strong smells may be a sign that something's wrong. 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.