I'm cautious about the canned fish. If it's tuna, it's going the high in mercury and likely in a can giving you large doses of BPA when consumed on a daily basis. Salmon may be a better choice for mercury, but it too, is usually canned in cans containing a bit of BPA. Even worse is canned shellfish such as clams, oysters, and tiny shrimp. They are typically canned along with citric acid meaning there absolutely MUST be a plastic lining or the citric acid would erode the cans. And since citric acid IS an acid, it will leach even more BPA from the linings!
My go-to for canned seafood these days is sardines and kippered herring. Why? Because they are typically canned in unlined cans, meaning at least, in theory, they should be BPA-free if nothing else. Not all brands are this way however. You can tell by "feeling" the insides of the cans. Do not rely on site! If the inside of the can feels plasticky or vinyl-like, it probably has been lined with plastic (BPA or BPS alert!) even if you cannot see it.
I know that Crown Prince offers sardines in cans that should pretty much be BPA-free, as they claim their smoked clams in olive oil are also. Same for their kippered herring. Both the Wild Planet sardines and King Oscar brand sardines (at most Wal-Mart or Target stores) should also be in liner-free cans if their website is to be believed. I think the Brunswick company once confirmed that their kippered herring and sardines were in BPA-free packaging at one point, but I haven't had them in forever, so do the "feel" test!
Whole Foods brand canned ANYTHING will not be BPA-free as they released a statement saying they did not consider BPA a major health concern. Trader Joe's has switched a lot of their canned products to BPA-free packaging, but they refuse to publish a list of which cans are or are not. So you can't know for sure.
Best option is to go for salmon in pouches if you're making it a daily staple. Just be aware that you should check the labels! I know that Chicken of the Sea salmon in pouches is typically packed in a soy-based "broth" so you may want to pass on that brand. Bumble Bee salmon pouches are just salmon, water, and salt, so that should be ok.
Since cooking meat is largely going to be out of your ability without access to a stove or oven, and you may not want to eat raw meat, I suggest carrying around a bottle of coconut oil it's to make sure you're getting your healthy doses of saturated fats that you may be missing out on from animal sources, particularly the red meat! Best benefit is, it will boost your metabolism because of the MCT content and is very supportive of the thyroid gland so it will help keep you warm on a cold winter's night.
Best of luck, hope this was helpful in some way, and PLEASE check back in regularly so we know you're doing well. If you're ever around DC, feel free to bug me! I have a fold-out couch you could use for a few nights.
Last edited by Drumroll; 02-12-2014 at 06:08 PM.
"The cling and a clang is the metal in my head when I walk. I hear a sort of, this tinging noise - cling clang. The cling clang. So many things happen while walking. The metal in my head clangs and clings as I walk - freaks my balance out. So the natural thought is just clogged up. Totally clogged up. So we need to unplug these dams, and make the the natural flow... It sort of freaks me out. We need to unplug the dams. You cannot stop the natural flow of thought with a cling and a clang..."