Typically a distributor won't give you a "cheap rate" unless you walk in (like these stores did) with an order for say $200,000 worth of products for your new store.
Joe walking in from the street with fresh new business license will probably get a whopping 10% off for orders of 1-100.
Unless you get creative, and call around, and find some distributor or place in Tulsa, OK where you can snag your stuff cheap.
But for the most part -- the "all in one place for all your health store needs" distributor won't give you much of a break. It's not really worth much of their time spending resources, time, labour, etc. for the $25-$100 profit you might get them a month. They like to keep the client list down to a minimum, and huge clients at that. Which pretty much entails only retail shops.
At least that's the corporate philosophy from most of the non-computer distributors i've worked with.
Then again, you're scant on details on how you plan on doing this -- so can't dictate any advice beyond this.