Systemic regulation of L carnitine in nutritional metabolism in zebrafish, Danio rerio Scientific Reports A novel treatment for subclinical hyperthyroidism AcetylLcarnitine suppresses thyroid hormoneinduced and spontaneous anuran tadpole tail shortening Hanada 2013 Hereditas Wiley Online Library ThyroSoothe 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.