Nutrition Advice for someone with food allergies.

[Realgone]

Need advice for keeping energy up on 30+ mile bike rides. I have a sugar and dairy allergy/sensitivity. In the past I have eaten what the ride supplies and they often contain sugar. I need something to replace energy and electrolytes, but stuff like granola bars with sugar and sugary drinks make me feel worse than before eating them I feel more tired and and top of that have an upset stomach. I am doing Chilly Hilly in about a month.mit is 33 miles and has lots of hills. I have been riding as much as I can over the Winter, but weather has prevented me from getting out for three weeks. To get to the point I and many of the riders on this event will not be in the best of shape and I am looking for ways to keep my energy up. I am thinking abut making my own granola bars with peanut butter and maple syrup and would like to use an enhancer in my water. I will probably get hammer nutrition products for the water.

Question is how much and when? Obviously I will eat before the ride. How often should I eat and use the hammer nutrition products and which ones do you recommend, Endurolutes? Gel?