My diet has gone to pot lately as I lack the energy to cook anymore with uniwork consuming more hours than the day allows. So it is literally pastry from the bakers in the morning, fruit throughout the day and a ready made curry or chinese at night. I know how diet can effect you due to this sudden change, I feel a bit more bloated and unhealthy than I usually do.
But it is important to get a good balance, If you are keen on going to the gym eat lots of carbs to keep your energy up, but it could turn into fat. last year I went through a bout of wanting to swim all the time and I had a high carb diet that worked for me. Also, I found that eating food rich in protein an hour or so before working out is good after my friend suggested it once.
-edit-
Oh and lots of fruit and veg... also have 4 or 5 smaller meals a day if you are up for that











