Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get Instead of relying on ADHD medications, here are some natural alternatives. Diet: Avoid sugary foods and artificial dyes & preservatives Eat foods containing L tyrosine (this is the amino acid Amazon.com: DR. MARTIN'S NUTRITION Extra Strength L Carnitine 200 Capsules 1000mg Per Serving Boost Your Metabolism and Increase Performance : Health & Household Ancient Nutrition Organic Super Greens Review by a Dietitian Top 7 L Carnitine L Tartrate Uses for Fat Loss