CUD Deficiency Primary Carnitine Deficiency Acetyl L carnitine is a white crystalline solid that resembles snow. It has a mild odor similar to vinegar. It is a metabolite of L carnitine, derived from the amino acid L lysine in a series Acetyl L Carnitine and Erectile Dysfunction: What the Evidence and Real World Use Actually Show L Carnitine: Does it help with weight loss? Does Carnitine Cause Body Odor? Lume Deodorant