The steak allows for MPS (muscle protein synthesis) which means your body will have protein available to repair muscle mass which regularly breaks down througho

The steak allows for MPS (muscle protein synthesis) which means your body will have protein available to repair muscle mass which regularly breaks down throughout the day. If your diet has no protein a much higher part of the weight you lose will be muscle mass instead of fat mass, which is why two people on the above diets will look very different.