The closer we are to a food's original form the healthier it is. Remarkably, it is also less expensive. The more a food is manipulated and changed end the higher the chance is that it contains more additives and preservatives as well as the higher the price.
Read labels to see exactly what is inside that can, jar or bottle. Many manufacturers now offer healthier, more naturally processed options. A good rule of thumb is if you don't recognize and ingredient or you can't pronounce it, leave it on the shelf.
Healthy, affordable, whole food options can be found at a regular grocery store. Shop the perimeter of the store for the majority of these healthy options. By shopping for the fresh stuff you will most likely save money. By choosing to eat healthier foods you will definitely feel better and you may even lose some extra weight in the process. Sounds like a win-win to me!