can i take acetyl l carnitine when fasting 4 Benefits of L-Carnitine for Your Heart and Brain Health Acetyl-L-Carnitine

While they can be effective for mild deficiencies or maintenance once adequate levels are reached, they are generally not as effective as injections for treating severe deficiencies

On non-training days, take it with any meal

Understanding how and when to take L-Carnitine can maximize its benefits, whether for improving sports performance, supporting weight loss, or enhancing cardiovascular health

Gluten Free Society has provided you a run-down of it.

100% PURE L-CARNITINE - The recommended dose (2 capsules) of L-carnitine ensures 1,470.5 mg of L-carnitine in tartrate form of which 1000mg pure carnitine per dose, concentration of 68% pure L-carnitine per capsule (500mg)