Lean Sauce L Carnitine Pump Sauce NutriCartel Lean Sauce L Carnitine Pump Sauce NutriCartel L Carnitine 3500, Sweet Grape Candy, 16 fl oz (473 ml) NutraBio LeanShots L Carnitine 3000, Green Apple, 16 fl oz (473 ml) : Target The claim that adding a pinch of salt to your banana can activate the sodium potassium pump and recharge your muscles sounds scientificbut it's misleading when taken literally. The sodium potassium pump is a