Ground whole tune
A great source of protein, this is a supplemental food that should include other sources of protein. Packed with protein, selenium, magnesium, and potassium, as well as vitamins B3, B6, B12, and of course Omega-3 fatty acids, this is a nutrient dense food choice for sure. Mercury is higher in tuna, so moderation is key. Just like how Tuna is good for you, but not every day, the same can be said for your dog. Used properly, this is a great source of protein and vitamins.