- Fasted Workout Amplifier - Increase fat burn - Speed recovery MetCon L Carn is the most effective All Natural non-stimulant blend of L Carnitine on the market. Our blend is focused on triggering fat burn for energy, especially during fasted cardio in the morning. MetCon L Carn delivers three forms of L Carnitine, Taurine, Glycine, and BioPerine in the optimal clinical dose to increase your calorie burn during your workouts and get you sweating without any stimulants. Like all MetCon Supplements, MetCon L CARN is All Natural, with NO Artificial Flavors, Colors or Sweeteners. It has a natural fruit punch flavor and is naturally sweetened with Stevia, Paleo Friendly, Gluten Free, Made in the USA and is 100% GMP Certified. Suggested use: Mix 1 full scoop with 12 oz of water and MetCon Start 15-minutes prior to training. On non-training days, take first thing in the morning. Due to potency, new users may wish to assess tolerance by consuming only 1/2 scoop.