After surgery, eating normally isn't enough. Your protein needs roughly double, but most people only get a third of what they need. Protein with essential amino acids supports muscle repair and wound healing, so you have to actively increase it.
Many people think that just eating their normal food after surgery is enough, but it's not. After surgery, your requirement for protein doubles. Most people only consume about a third of their protein requirements, and protein, especially high in amino acids, supports muscle recovery and supports healing. So if you want to get a quick recovery, you really need to increase your protein after surgery and add that to your normal diet— hopefully a healthy one at that.
