What i found most interesting about the soldiers diets was how bad the food they ate was. Maggot ridden hardtack, raw pork, and any type of dirty water just to get a cup of coffee isn’t the best of diets. I feel if they weren’t dying in battle they were definitely killing themselves slowly. Both sides were definitely addicted to coffee to the point that the confederacy blamed their loss partially on the lack of coffee. I mean both sides did what they had to do in order to last in the fight as best they could. Desperate times call for desperate measures! One food that i cant live without is some good’ol pizza. 
i love pizza also, who doesn’t. how about that Hawaiian pizza ?