Then, you can eat like a normal, healthy human being. You can't solve this problem with diet because you're an ectomorph with genetics predisposed to abdominal fat. Once you have it (from poor eating habits in your youth), you can't lose it with diet and exercise alone. You should know - you've tried for years! Raisins and nuts are all carbs and fat. You're eating them in excess because you're starving. You're not helping yourself.