Oatmeal cookies, fig or blueberry newtons, dense dry "square" bread from grocery deli section (about 5x the density of normal bread -- CANNOT eat it without ample water to wash it down unless you like choking on terminal hiccups!).

I tried to eat something at least every other break. Eating was moderately pleasant, but anything other than "open and eat" was a chore. I wore a boonie hat with a fully-opened bandanna under it in back, plus gloves and a long-sleeved windbreaker (Packa during sustained rain) even into temps in the 80s (protection mainly against ultraviolet, secondarily against brush and bugs, including ticks), so I sweat PLENTY while hiking. I never got the shakes, except from being cold for a bit after I stopped at Jarrad Gap.