Processed food is the culprit in the over-consumption of salt. 75% of the sodium people consume comes from pre-packaged foods and eating out, not the saltshaker!
Pre-packaged meals at the grocery store are commonly frozen or canned for preservation and convenience. From a dietary perspective, there are some usual suspects which are particularly high in salt (sodium).
These foods include: canned goods like soups and stocks, frozen/pre-packaged meals, pickles, olives and other foods sold in preserved jars, sauces like soy sauce and ketchup, processed cheeses, and foods with added salt like nuts, crackers and chips. Opt to stay on the outskirts of the grocery store where typically healthy whole foods, fruits and vegetables are located.