l carnitine l tartrate syrup NOW Foods Sports Nutrition, L-Carnitine Liquid, Triple Strength 3000 mg, Citrus, 16-Ounce : Health & Household Liquid L-Carnitine L-Tartrate + Chromium
Description
Cruciani R, Dvorkin E, Homel P, Malamud S, Culliney B, Lapin J, et al

When the body is deficient in carnitine, long-chain fatty acids cannot be efficiently transported into the mitochondria for beta-oxidation
CLINICALLY DOSED LIQUID CARNITINE FORMULA: Liquid Carnitine 3000 delivers 3,000 mg of pure L-Carnitine per serving in a fast-absorbing liquid form to support energy metabolism

They may not be as richly supplied as red meat but still can be used as a good alternative, especially for the ones who are looking for leaner protein