Here is a link to a good article about what Dr. Alejandro Junger, integrative physician, considers staples of a healthy kitchen:

https://www.yahoo.com/beauty/15-must-have-staples-of-a-healthy-kitchen-94728610700.html

Dr. Junger became somewhat famous in 2009 for his book, Clean, wherein he describes his struggles with detoxing from substances like sugar and dairy that seem to be everywhere in the American diet.

He has since published Clean Gut, and this spring came out with Clean Eats, which includes recipes and how to stock your kitchen.

Check out the article - it makes sense.