Our Mackerel Morsels Are Tasty Fish-Based Biscuits Made With Delicious Mackerel And Beneficial Omega 3. These Treats Are Also Further Enhanced With Krill, A Superior And More Easily Absorbed Source Of Omega 3 To Help Support Skin And Coat Condition. Skin & Coat Mackerel Morsels Are Part Of Our 'Support+' Treats Range. The ‘Support+' Category Contains Treats With Specifically Selected Additives To Support Specific Health Considerations.