l carnitine thyroid hormones L-carnitine supplementation at doses of 2–4 g/day has been shown in a randomized, double-blind, placebo-controlled trial by Salvatore Benvenga to reverse and prevent symptoms of iatrogenic hyperthyroidism in women receiving TSH-suppressive levothyroxine NOW Foods Sports Nutrition, L-Carnitine
Description
DIETARY SUPPLEMENT

Scandinavian J Gastroenterol

You can use it: During training Post-workout Alongside meals to boost calorie intake Its not replacing foodits supporting intake when food becomes impractical

L-carnitine tartrate with high quality standards

doi: 10.1007/s00726-006-0486-8
