L-carnitine to Treat Fatigue Associated With Crohn's Disease

Inclusion Criteria: * Patients will have had previously macro- and microscopically verified Crohn's disease, as defined by traditional clinical and endoscopic standards. * To be included, patients need to have disease which is either in remission or is mild to moderate in severity, as defined by the Harvey-Bradshaw Index Score (HBI\<16). * In addition, patients will need to answer "yes" to the screening study entry question ("Is fatigue a signficant problem for you currently?"). Exclusion Criteria: * Exclusion criteria will include: * age \<18 or \>70 years * pregnancy or delivery within 6 months * malignancy diagnosed within 1 year * oral/intravenous steroid treatment within 6 months * any surgery within 6 months * presence of a stoma or ileo-anal J-pouch anastomosis * concurrent hepatitis B or C infection * cirrhosis * renal insufficiency (CrCl\<60) and history of seizure disorder or hypothyrodism. * prior to study enrollment * women of child-bearing age will need to undergo pregnancy testing.