I LOVE wolfberries - otherwise known as goji berries. They are great for the immune system, digestion, liver, etc. Also help balance blood sugar. I mix them with raw pumpkin seeds for a quick snack.
I get mine from the Young Living company http://www.youngliving.com #176667 - I also love their Berry Young Juice or Ningxia Red as it is now called - great stuff!
Would love to know other good sources for bulk purchasing if anyone knows of anything, as they are a bit pricey.