I do not have to control sodium, but I try to avoid excess sodium. One rule of thumb is to minimize foods that have more sodium (milligrams) than calories per serving on the label. Canned soups, chili, etc have a lot of sodium. Same with a lot of dehydrated soups.

When you are looking at the nutrition label, mentally think about the ratio of sodium to calories and keep that ratio low. If a serving is 100 calories and sodium is 400 milligrams, that is a ratio of 4 milligrams of sodium per calorie, don't buy it. You probably need an average ratio that is close to one, a ratio of four is too high.

Skip the canned pasta meals and instead buy pasta noodles and use a separate sauce. And you probably would need to make the sauce from scratch, for example spaghetti sauce in a jar often has a ton of salt added but you could make up your own sauce with tomato sauce and your own spices, etc.

I have to eat a low carb diet to keep blood sugar under control, so I know how complicated restricted diets can be, I try to keep my calories from carbs below 30 percent of my total calories, which for me means a lot more fats and protein. My point is that I know what you are thinking, but you will figure it out and not let your diet control your vacations.

Probably have to bring some foods from home if you are not sure if you can buy them where your trip is.

When I fly out of the country, I bring some dried foods that I suspect are unavailable where I am going, but first you need to check what is allowed in any other country you go to, each country has limits on what you are allowed to bring in.