Which of the following is an example of a common source of hidden sodium?

Canned soups are indeed a common source of hidden sodium. Many processed and pre-packaged foods, including canned soups, often contain significant amounts of salt used as a preservative or flavor enhancer. This added sodium can contribute to an individual's daily intake without them being fully aware of it, especially since canned soups can vary widely in sodium content.

On the other hand, rice, fresh fish, and whole grains are generally low in sodium unless they are prepared with additional salt or sauces. These foods are usually healthier options for those monitoring their sodium intake. Understanding hidden sources of sodium is crucial in managing hypertension and making informed dietary choices.