Kale, quinoa, avocado: Which superfoods are really super and which are a lot of hype? – Today.com

Kale, quinoa, avocado: Which superfoods are really super and which are a lot of hype?
Today.com
From turmeric to coconut oil to green tea, it seems every year there's a new batch of superfoods we're supposed to include in our diets. But which health food favorites actually deliver? NBC News health and nutrition expert Madelyn Fernstrom helps set …