Anyone ever take nutritional supplements back to the US? I've bought things at the herbolario that I can buy in the US but are much cheaper here. If you've done this, how do you list it on the customs form? I've bought numerous bottles, but don't want to draw attention from customs inspectors. I have a connecting flight to catch!

I've done the same thing - never declared vitamins and such. If you are worried and have US vitamin bottles with you, simply refill them with the Spanish ones but remember which suppliment is in which bottle