pets at home rat nuggets

[kim]

Someones pet rat has unfortunately just passed and she has offered me the left over bag of the pets at home rat nuggets she has for my gerbils so I just wanted to check that this would be ok for my gerbils if I mix a small amount into there normal gerbil food. 
Its this stuff www.petsathome.com/shop/en/pets/small-pet/rat/rat-food-and-treats/nugget-rat-food I'm not sure what the nutritional values are but I will check them when I get it.