Here’s how protein plays into the equation. Protein can help displace those carbs. The amino acids that form the building blocks of protein provoke a much-lower insulin response than the one triggered by a high-carb meal. So consuming more protein will have a less dramatic affect on your blood sugar.

Protein also triggers the release of a hormone called glucagon. Glucagon is the yin to insulin’s yang. While insulin takes sugar from your blood and pushes it into muscle and fat cells, glucagon gets your fat cells to release stored fat into your bloodstream, where it provides fuel for your muscles, brain, and everything else that uses energy. Meaning that of all the types of food you can eat, protein is the most efficient for your body: It controls insulin and helps incinerate fat.

(Source: fitnfitter)