l-carnitine fat burning energy SIRENLABS Elite Burn Liquid Keto Burner and Metabolism Activator - Fat Loss Support Keto Friendly Weight Loss Increase - Stimulant Free Liquid L-Carnitine – Core Nutritionals

Several methodological issues contribute to mixed results for example, tests used to assess cognitive function vary greatly, study participants are not always equivalent, study duration may be too short to see an effect, or the dose, form, and combinations of the nutrients of interest may differ across studies

Large doses of levocarnitine may cause diarrhea

The researchers concluded that "these findings agree with previous observations among healthy adult subjects and demonstrate that L-carnitine L-tartrate supplementation beyond 35 days is beneficial for improving recovery and reducing fatigue following exercise across gender and age." Of course none of this comes as a surprise to members of the ProSource Product Research Team