According to researchers from the AIS you do. They found that consuming 25g of whey protein within 30 minutes of exercise increases protein muscle synthesis.
The AIS also recommends you have between 30-60g of carbohydrate during intense exercise that lasts beyond 60-90 minutes. Why not try an Endura energy bar or gel for instant energy.
Speak to one of your shop practitioners today about the whey protein isolates and concentrates in stock.