just eat a bigger meal, containing lots of slow carbs and some protein, 1-2 hors before you work out. if you should feel hungry just before your workout, get in 20-30 of whey and an apple, or some 50g of oatmeal or so. but be aware, not to take simle carbs before the workout. after your training get in 40-80g of fast carbs, for example simple sugar, dextrose, vitargo, maltodextrine, or even gummibears. and don´t forget some 30-50g of whey