Like most dry kibble manufacturers, we use a trace amount of sodium selenite within our minerals premix to ensure that there is a sufficient level of selenium within the food (which is an essential trace element for dogs and can be broken down during the cooking process). This is within industry guidelines and is perfectly safe to feed your dogs. Even so, we are looking at switching to organic selenium via a chelated vitamin premix in the near future.
We do not add sodium selenite to our raw or wet foods. Full ingredient lists can be found in the ingredients tab on each product page on our website.