Yes, L?Carnitine can help support fat metabolism and energy during exercise, which may aid fat loss and muscle performance, but it cannot replace a healthy diet and regular workouts. A common daily dose is 500 to 2000?mg, usually taken 30 to 60 minutes before exercise. For best results, combine it with exercise, protein-rich meals, and a balanced diet, and consult a doctor if you have any medical conditions before starting.

Carnitine is a nutrient that helps the development and movement of sperm. In men with oligospermia (low sperm count), carnitine supplements may improve sperm motility and quality, making it easier to conceive. It can support overall sperm health when combined with a healthy lifestyle and proper medical care.

Yes, L-Carnitine 500?mg is generally safe for an 18-year-old, including at a higher weight, and is often used to support energy metabolism and fat use. However, it works best alongside a healthy diet, regular exercise, and lifestyle changes. Check with a doctor before starting, especially if you have any medical conditions or take other medicines, to ensure it is suitable for you.