Your immune system can’t fight what it can’t see. Scientists say low levels of a common amino acid may make it harder for cells to display warning signals that alert immune defenders to viral and cancer threats. That’s just one of many reasons to support it…

Keeping your teeth in good shape can be an uphill battle, even with a stellar oral hygiene routine that includes flossing and brushing a few times a day. If you need extra help, give the cavity-busting power of arginine a try…

Arginine, also known as L-arginine, is an amino acid that helps the body build protein. But that’s far from all it does. From enhancing circulation to athletic performance, scientists are amazed at what they see it doing for the brain…