Yes. To do that, go to your Profile -> Business -> Email. Once you update your email, you will be logged out immediately and will need to re-login.
Using Temporary Emails
If you've used a burner/temporary email just to try Foodzilla, then you have to create another account with your work or personal email address. We discourage using burner emails for security reasons (others can see the content of emails received to this address) as well as ethical reasons.
When you use a burner/temporary email with a product like Foodzilla, it can be flagged by Google and other mail providers as spam and this hurts our brand and product. So please, don't use a burner email to try Foodzilla. Just use your personal or work email address.