l-carnitine for child Carnitine but significant amounts are only found in dark meats (due to high concentrations of mitochondria) L-Carnitine, 500 mg, 60 Vegetarian
Description
et al.: Trimethylamine-N-oxide (TMAO) response to animal source foods varies among healthy young men and is influenced by their gut microbiota composition: A randomized controlled trial

1Azorubine: may have an adverse effect on activity and attention in children

It is often used by athletes looking to enhance muscle mass without the negative side effects of anabolic steroids
Scientific evidence: L-Carnitine (Stephens et al., 2007)

Recent good quality research by Tolbert and Findling found that B6 and magnesium did not result in statistically significant effects
