Did you know that you can control your metabolism with protein?
One of the great benefits of introducing added protein into your diet is because; when protein in absorbed, it sends a signal to the brain to decrease your hunger, and when you are wanting to lose weight, not having nagging pangs of hunger is a welcome benefit. Another benefit of protein is that is actually raises you resting metabolism by maintaining and increasing muscle mass.
Muscle cells are much more metaboically demanding than fat cells, so the greater our proportion of muscle to fat, the faster our metabolic rate becomes.
Protein also leads to a much less rapid rise and fall of blood sugar and insulin, so you avoid the 'sugar highs and lows'