Pro Health, Inc (ProHealth.com) appears to offer competitive pricing and additional savings through their "Smart Savings" club. If you select the "Smart Savings" button you get a small savings on price and shipping BUT YOU ALSO AUTHORIZE THEM TO SHIP THE SAME ORDER ON A MONTHLY BASIS. You will NOT know of this commitment until you receive the unwanted shipment and when you cancel it you will charged for ALL earlier shipping "savings". read full review »