Seems every time you turn around you're hearing one food is good for you, then the next day, it's not good for you.
The CDC just published a super foods study done by William Patterson University. There are 41 powerhouse fruits and veggies.
this is the list. What you won't find on this list: raspberries, blueberries, cranberries, garlic, onions and tangerines. They're still good, but this study based their rankings on foods that have 8 essential nutrients and how much of those nutrients they provide.
The CDC has a really cool feature that allows you to put in your age, gender and activity level to see how many fruits and veggies you should eat in a day. It also gives you options and examples.