Can You Take Arginine with Methionine?

Taking Arginine and Methionine together may affect how your body processes certain nutrients. This interaction could influence urinary nitrogen excretion and the uptake of these amino acids in your body. While the effect is generally mild, it's essential to be aware of it. Arginine may inhibit the uptake of methionine through a process called partially competitive inhibition. This means that when arginine and methionine are taken together, they may compete with each other for absorption in the intestines. Additionally, research has shown that supplementing with both methionine and arginine can affect urinary nitrogen excretion, which might impact overall nitrogen balance in the body.