l carnitine loss of appetite does reduce Amazon.com: BPI Sports CLA+Carnitine – CLA L Carnitine & Fat Loss Bundle –
Description
Future research should focus on elucidating L-carnitine's molecular mechanisms within the hepatic metabolic network and rigorously assessing its safety and efficacy in well-designed clinical trials

Although safe in moderation, potential carnitine side effects include stomach pain, nausea, vomiting and diarrhea

10.1016/S0140-6736(17)30566-4 63 SchugarR

Read more about the study HERE