For die-hard tuna sandwich lovers, the beloved fish sandwich might rank No. 1 as ... tuna sandwiches alone is a perfectly good way to use up their weekly calorie allotment. And while it is ...

Narrator: In 2013, a 489-pound tuna sold for a whopping $1.8 million. But you can buy a can of tuna fish at the grocery store ... Wilcox splits up the meat based on type. Wilcox: It's just like ...