It is best to workout with a little something in you if doing cardio and really a must if doing resistance training. If you don't have much time though you don't want to have to sit around forever waiting for something to digest correct?
Best thing you can do is have a fast acting pre-workout meal. More liquid the better like a a light cup or yogurt, protein shake with a bite of fruit, it can only be 50-100 calories but just a little something to protect your muscle during workout and give you fuel. The less calories it is the more protein it needs to be.
Then after your workout have a nice healthy breakfast/post workout meal of some protein and carbs.
