Unfortunately, the same vitamins and minerals that are presented as standalone supplements can actually be found in high quality cat food. (mypetneedsthat.com)
BCAA stands for branched chain amino acids, specifically leucine, isoleucine, and valine and often come in their own standalone supplement product. (healthadviceworld.com)
It is also found in standalone supplements, it is also used in multivitamins but in low concentrations which is not sufficient to provide much benefit. (consumerhealthdigest.com)