Are you getting enough protein?
As it turns out, there is no metabolic pathway to store protein as fat. Once protein is broken down into amino acids, they are used to replace any degraded amino acids that are already in your body. They could be used to make certain hormones, rebuild or build muscle, replicate DNA, or replenish neurotransmitter stores. These are ongoing actions that happen every second of the day.
So what about the extra? In short, the extra amino acids (and degraded ones) are degraded further into urea and then sent to the kidneys to be discarded into urine. Because of this pathway, it is almost completely impossible to store a protein as fat. So unless you have kidney problems, you are not getting too much protein.
The advantage of adding more LEAN protein to your diet is that you can then further decrease your fat and carb consumption to lose weight, yet still be satisfied.
Four hand sized portions of lean protein (wild fish, grass fed meats, and free range poultry) per day should be sufficient to conserve or add muscle mass while decreasing your carbs and fat intake slightly for most people. Athletes and those that exercise hard or trying to add muscle mass should add about 20-50% to this.