L-Citrulline is an amino acid named after the Latin word for watermelon and not surprisingly it is found in that fruit as well as onion, garlic and legumes. When combined with arginine (see this in our list) it creates Nitric oxide, which increases blood flow, thus allowing for more nutrients and oxygen to circulate. This is especially important for parts of the body that are not functioning well, as well as for overall health. It is used for cardiovascular problems, pain relief as well as an immune system booster.

Can be found in: All In System, restore dayli