Well if they do test this on humans, and if something goes wrong - they can easily fix it.
Just apply a wetware update. Maybe we can even deploy wetware updates wirelessly soon.
Just think of the possibilities. "Have you installed the Starbucks(tm) Wetware upgrade that makes you able to digest our latest drink, yet ?"
Or... "the latest patch for <brand>(tm) protects your genome against future cell aberrations so you can safely consume our (carcinogenic) products. Update your system now?"