My Hypothyroidism Story Diagnosis & Treatment Rachael Attard L Carnitine Benefits Patients with Hypothyroidism Natural Health Research L Carnitine Linus Pauling Institute Oregon State University L Carnitine Pills for Weight Loss: Evidence, Safety and UK Guidance Bolt Pharmacy L carnitine supplementation for the management of fatigue in patients with hypothyroidism on levothyroxine treatment: a randomized, double blind, placebo controlled trial. Semantic Scholar If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy.