Looking for Answers

Last week we did our first really big training run of the season. 50 miles at Afton State Park. It hurt at the time...and for a few days after...but I felt pretty much recovered within a week. Being stubborn as we are, Joel and I couldn't bare the idea of missing another Marathon Monday so exactly a week after the 50 we arrived at Afton ready for yet another 26 miles. And once again, the weather was perfect. We got started around 7:30am with a cloudless sky and a projected high around 75 degrees. We decided we'd run the Afton Trail Run course for one 25K lap and then do the course in reverse until we arrived at the campground hill road. Once at the road we decided to do laps until we had enough miles to hit the marathon mark before heading back to the car on the main paved trail.
The first 25K was surprisingly easy. My legs felt great on both the ups and the downs. I felt strong with a good amount of spring in my step as we ran the long downhills. Once back at the car we took a few minutes to reload bottles, drink a Coke, and get out of the sun. The last 10 miles was really difficult for me. My whole body hurt. I was once again fighting off cramps but the Endurolytes earned their keep. Joel seemed to get stronger with each mile while I became more sore and frustrated. Fortunately I've got a long weekend at the cabin coming up so I'll get an apparently much needed rest. If I run this weekend it will be short. I'll most likely spend the weekend eating and hopefully beating Jen's Dad racing sailboats. Since he owns the two little boats we'll be racing each other in I'm sure he'll either pick the faster one or he'll tie a bucket under mine. It's OK though, he's getting kinda old and needs the encouragement now and then.
Back to my suffering...
During the run I drank four 20oz. bottles of Accelerade, one 20oz. bottle of water, I had 6 Endurolytes, 1 gel, and a half can of Coke.
As I think back to a year ago, I realize I was always carrying a third bottle of nuun as a back-up. It was rare to arrive back at the car after 25K with much left in any of my bottles.
This year it really seems like I've had a more difficult time during some of these hard efforts and I also feel like I'm not recovering as quickly.
Following is a list of my running supplements:
1st Endurance Optygen - taken daily
1st Endurance MultiV - taken daily
Accelerade - 40oz. every 10 miles - 120 calories per 20oz. (this is what I should be drinking not what I have been)
nuun - one 20oz. bottle as a back-up to the Accelerade. (again, should be, but not doing)
Endurolytes - taken as needed. Basically 1 or 2 each hour.
Power Gel - Tangerine, caffeinated. Joel thinks it smells like bug spray. I think it tastes like it. I carry these as bonk prevention.
Endurox - 20oz. as a recovery drink. I typically drink another 20oz. before bed after big efforts.

I'm putting this list out there because it's really the same as what I did last year, except that I don't think I'm consuming enough Accelerade during the run. The problem is that I feel like my body is suffering more this year. I'm sure part of the issue is with my daily diet, in that I don't think I'm eating enough. I've noticed over the past two weeks I'm craving bad bar food. you know, spicy chicken wings, greasy burgers and fries. These cravings suggest I'm not getting enough fat or salt in my diet. I typically have a simple diet, low in fat, whole foods. I eat very healthy foods but maybe not enough. Inadequate quantities of both fat and sodium are probably impacting my performance and my attitude.
Am I missing anything obvious or am I somewhat on track with the idea that I'm just lacking some fat and calories?