Your address book can be managed online by logging into your Onnit.com account. The menu bar on the right side will have several options to choose from, including "Addresses".
Here you can add new address, edit or remove existing addresses, or designate a different address to become your primary/default address on file. Whenever adding a new address, however, we also suggest removing old addresses to remove any room for error while ordering.
Please note, if you also have an active subscription, you'll also need to update your subscription shipping address by navigating to Subscription & Save.
For further assistance, feel free to contact help@onnit.com, chat, or call 1-855-ONNIT-99 to speak with a representative.