Will taking L-carnitine cause weight regain?

Whether weight rebound occurs after taking L-carnitine mainly depends on individual dietary habits and physical activity levels. L-carnitine is an amino acid-like compound that facilitates the conversion of fat into energy. It primarily promotes fat metabolism during the weight loss process. If, after taking L-carnitine, one maintains healthy eating habits, avoids overeating, and combines this with appropriate aerobic exercise, weight rebound generally will not occur. However, if after taking L-carnitine, one fails to control dietary intake, continues consuming high-calorie and high-fat foods, and lacks physical activity, weight gain may recur. This is because L-carnitine itself does not increase the body's metabolic rate; it only plays a supportive role in the process of fat metabolism. Without modifying pre-existing unhealthy lifestyle habits, even with L-carnitine supplementation, achieving long-term weight loss effects will likely be difficult.