Many retailers have store brands; Walmart is no exception. Walk into any Walmart and you'll see "Great Value" products lining the shelves, including canned tuna. However, though economically ...

While light canned tuna isn't listed among types ... tuna — at least not if you're considering buying Walmart's Great Value tuna. One of the big red flags you'll find on a can of Great Value ...

To find the most high-quality options, I sampled 12 cans of oil-packed tuna and 14 of the water-packed variety, spanning categories like white tuna (albacore), light tuna (skipjack or yellowfin ...