Here's the thing about "superfoods".
They're not really "super".
There are foods that have great nutritional content for your calorie buck. ONe that comes to mind is avocado. It has tons of healthy fat, great vitamins, etc. It is not going to cure cancer, make you lose weight, or anything else. It's simply a healthier choice and a good nutritional boost if you like it. They may contain more antioxidants, or have tons of vitamin C for helping to boost your immunity, but they aren't going to magically do anything for you that anything else can't.
Stick with the superfoods in the grocery store, not the supplement sellers and pyramid schemers.
Here's some *real* superfoods: www.sparkpeople.com/resource/nutrition_art