Magnesium is a mineral which supports muscle function and helps to prevent cramp
Medical Biochemistry (Second Edition): Academic Press
If you stick to this plan, you will have a much better chance of achieving the desired results
The better answer is narrower and more useful: L-carnitine may help some adults lose a small amount of weight, may support recovery markers in some exercise studies, and may matter more for people with low carnitine status, higher body weight, older age, metabolic issues, or a long enough supplementation window
Eur J Clin Pharmacol 59:243251 van Lingen RA, Deinum J, Quak J, Kuizenga A, van Dam JG, Anand K et al (1999) Pharmacokinetics and metabolism of rectally administered paracetamol in preterm neonates