In 2007, IMS Supplements, Inc. registered the domain name www.nutri-dog.com for use in commerce. The official registration date is November 17, 2007. The site Nutri-Dog.com has been in use since that date.  

Subsequently after that date other companies have named products with the Nutri-Dog name after that date. If you have questions about such products it is best to contact the manufacturer of those respective products.