sodium selenite Dog Food Advisor › Forums › Editors Choice Forum › sodium selenite Viewing 1 post (of 1 total) Author Posts October 4, 2015 at 9:18 am #79092 Report Abuse Rick OMember Is sodium selenite dangerous for my dog….I have read conflicting opinions on this. Can you please advise. We like Wellness Core but it has this ingredient in the middle of the list of it’s ingredients. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In