While they didn't find any Tuna in Subway Sandwiches, they did find Jared Fogle's meat between some buns.
>>14000951
One of the residents had some kerosene and office supplies.
If you are talking Baseline survival, get rice, olive/fish oil, vitamin and mineral and whey protein powder.
Hence the whey protein.
You need about 100g per day per person not keep muscles from wasting.